UNITED STATES PATENT AND TRADEMARK OFFICE 
`
`BEFORE THE PATENT TRIAL AND APPEAL BOARD
`
`
`COOLER MASTER CO., LTD.
`
`Petitioner,
`
`v.
`
`ASETEK DANMARK A/S,
`
`Patent Owner
`
`
`
`Patent No. 8,245,764
`Title: COOLING SYSTEM FOR A COMPUTER SYSTEM
`
`IPR Case No.: IPR2023-00668
`
`
` 
`PETITION FOR INTER PARTES REVIEW 
`
`
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`

`U.S. Patent No. 8,245,764
`IPR2023-00668
`
`
`
`
`Petition Requesting Inter Partes Review
`
`TABLE OF CONTENTS
`
`TABLE OF CONTENTS ......................................................................................... ii 
`TABLE OF AUTHORITIES .................................................................................... v 
`TABLE OF EXHIBITS ......................................................................................... vii 
`INITIAL STATEMENT ................................................................................. 1 
`
`I. 
`
`II. 
`
`IDENTIFICATION OF CHALLENGE UNDER 37 C.F.R.
`§42.104(B) AND RELIEF REQUESTED ..................................................... 3 
`III.  OVERVIEW OF THE ’764 PATENT ........................................................... 4 
`Priority Date ......................................................................................... 5 
`
`A. 
`PERSON OF ORDINARY SKILL IN THE ART (“POSITA”) .................... 5 
`
`CLAIM CONSTRUCTION ........................................................................... 6 
`
`IV. 
`
`V. 
`
`“reservoir” ............................................................................................ 6 
`“chamber” ............................................................................................. 6 
`“underside” and “upper side” of the “chassis” ..................................... 7 
`“below” ................................................................................................. 7 
`“below … vertically”............................................................................ 7 
`
`A. 
`B. 
`C. 
`D. 
`E. 
`VI.  OVERVIEW OF PRIOR ART ....................................................................... 8 
`Duan (Ex-1006) .................................................................................... 8 
`Duan-I (Ex-1007) ................................................................................. 8 
`Batchelder (Ex-1008) ........................................................................... 9 
`Laing (Ex-1008) ................................................................................... 9 
`
`A. 
`B. 
`C. 
`D. 
`VII.  CLAIM ELEMENT NUMBERING KEY ..................................................... 9 
`VIII.  SPECIFIC GROUNDS FOR PETITION ..................................................... 26 
`GROUNDS 1 & 2: Claims 1-19, 21-27, and 29-30 are rendered
`obvious over Duan by itself or in view of Duan-I. ............................ 26 
`
`A. 
`
`ii
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`

`

` 
`
` 
` 
`
` 
` 
`
` 
`
` 
`
`B. 
`
`C. 
`
` 
`
` 
` 
`
` 
` 
`
`Duan by itself or in view of Duan-I discloses or suggests
`each limitation of claim 1 and renders it obvious. ................... 27 
`Duan by itself or in view of Duan-I teaches claims 2-9. ......... 49 
`Duan and Duan-I disclose or teach each limitation of
`claim 10 and render it obvious. ................................................ 64 
`Duan teaches each limitation of claims 11-14. ........................ 70 
`Duan and Duan-I teach each limitation of claim 15 and
`render it obvious....................................................................... 72 
`Duan teaches each limitation of claims 16-19, 21-27, and
`29. ............................................................................................. 79 
`Duan by itself or in view of Duan-I teaches each
`limitation of claim 30. .............................................................. 87 
`GROUNDS 3 and 4: Claim 8 is obvious over Duan in view of
`Laing or Duan in view of Duan-I and further in view of Laing. ....... 87 
`GROUND 5: Claims 1-30 are rendered obvious over
`Batchelder in view of Duan. ............................................................... 89 
`Batchelder in view of Duan teaches each limitation of
`claim 1 and renders it obvious. ................................................ 89 
`Batchelder teaches claims 2-9. ............................................... 113 
`Batchelder and Duan teach each limitation of claim 10
`and render it obvious. ............................................................. 123 
`Batchelder and Duan teach claims 11-14. ............................. 128 
`Batchelder and Duan teach each limitation of claim 15
`and render it obvious. ............................................................. 132 
`Batchelder teaches claims 16-29. ........................................... 136 
` 
`Batchelder teaches claim 30. .................................................. 143 
` 
`D.  GROUND 6: Claim 8 is obvious over Batchelder in view of
`Duan and further in view of Laing. .................................................. 143 
`SECONDARY CONSIDERATIONS ........................................................ 145 
`
`U.S. Patent No. 8,245,764
`IPR2023-00668
`
`
`
`
`Petition Requesting Inter Partes Review
`
`IX. 
`
`PAYMENT OF FEES UNDER 37 C.F.R. §42.15 ..................................... 145 
`
`X. 
`XI.  REQUIREMENTS FOR IPR UNDER 37 C.F.R. §42.104 ........................ 146 
`Grounds for Standing Under 37 C.F.R. §42.104(a) ......................... 146 
`
`A. 
`
`iii
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`

`

`U.S. Patent No. 8,245,764
`IPR2023-00668
`
`
`B. 
`
`
`
`Petition Requesting Inter Partes Review
`
`A. 
`B. 
`C. 
`
`Identification of Challenge Under 37 C.F.R. §42.104(b) and
`Relief Requested ............................................................................... 146 
`XII.  MANDATORY NOTICES UNDER 37 C.F.R. §42.8(a)(1) FOR
`INTER PARTES REVIEW .......................................................................... 146 
`Real Party in Interest Under 37 C.F.R. §42.8(b)(1) ......................... 146 
`Related Matters Under 37 C.F.R. §42.8(b)(2) ................................. 148 
`Lead and Backup Counsel Under 37 C.F.R. §42.8(b)(3) and
`Service Information under 37 C.F.R. §42.8(b)(4) ............................ 148 
`CERTIFICATION OF WORD COUNT UNDER 37 C.F.R. §42.24(D) ............. 150 
`CERTIFICATE OF SERVICE ............................................................................. 151 
`
`
`
`
`
`iv
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`

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`U.S. Patent No. 8,245,764
`IPR2023-00668
`
`
`TABLE OF AUTHORITIES
`
`
`
`Petition Requesting Inter Partes Review
`
` Page(s)
`
`Federal Cases
`ACCO Brands Corp. v. Fellowes, Inc.,
`813 F.3d 1361 (Fed. Cir. 2016) .................................................................... 59, 63
`Asetek Danmark A/S v. CMI USA, Inc.,
`Case No. 4:13-cv-00457-JST (N.D. Cal.) ........................................................ 147
`Asetek Danmark A/S v. Shenzhen Apaltek Co.,
`No. Case No. 3:22-cv-06179-WHO (N.D. Cal.) .............................................. 148
`Cooler Master Co., Ltd. et al v. Asetek Danmark A/S,
`Case No. 5:21-cv-04627-EJD (N.D. Cal.) ................................................ 147, 148
`In re Ethicon, Inc.,
`844 F.3d 1344 (Fed. Cir. 2017) ........................................................................ 112
`KSR Int’l Co. v. Teleflex Inc.,
`550 U.S. 398 (2007) ........................................................... 26, 27, 88, 89, 92, 144
`In re Kubin,
`561 F.3d 1351 (Fed. Cir. 2009) .......................................................................... 59
`In re Mouttet,
`686 F.3d 1322 (Fed. Cir. 2012) .......................................................................... 27
`Tokai Corp. v. Easton Enters., Inc.,
`632 F.3d 1358 (Fed. Cir. 2011) ........................................................................ 145
`Federal Statutes
`35 U.S.C. § 102(a) ..................................................................................................... 9
`35 U.S.C. § 102(e) ..................................................................................................... 8
`35 U.S.C. § 103 .................................................................................................... 3, 59
`35 U.S.C. § 315(c) ................................................................................................. 146
`Regulations
`37 C.F.R. § 42.15(a) ............................................................................................... 145
`37 C.F.R. § 42.104(b) ............................................................................................ 146
`
`v
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`

`

`Petition Requesting Inter Partes Review
`
`U.S. Patent No. 8,245,764
`IPR2023-00668
`
`37 C.F.R. § 42.122 ................................................................................................. 146
`Other Authorities
`IPR2020-00522 ...................................................................................................... 148
`IPR2020-00523 ...................................................................................................... 148
`IPR2020-00524 ...................................................................................................... 148
`IPR2021-01195 ...................................................................................................... 148
`IPR2021-01196 ...................................................................................................... 148
`U.S. Patent No. 6,019,165 .......................................................................................... 9
`U.S. Patent No. 7,325,591 .......................................................................................... 8
`U.S. Patent No. 8,245,764 ....................................... 1, 2, 3, 4, 5, 6, 8, 9, 97, 146, 147
`U.S. Patent No. 10,599,196 .................................................................................... 148
`U.S. Patent No. 10,613,601 .................................................................................... 148
` 
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`vi
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`

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`U.S. Patent No. 8,245,764
`IPR2023-00668
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`
`
`
`Petition Requesting Inter Partes Review
`
`TABLE OF EXHIBITS
`
`Exhibit
`
`Description
`
`1001
`
`1002
`
`1003
`
`1004
`
`1005
`
`1006
`
`1007
`
`1008
`
`1009
`
`1010
`
`1011
`
`1012
`
`1013
`
`1014
`
`U.S. Patent No. 8,245,764 (“’764 patent”)
`
`Inter Partes Reexamination Certificate, Reexamination Request
`95/002,386, U.S. Patent No. 8,245,764
`
`Declaration of Georgios Karamanis, Ph.D. Regarding Invalidity of
`U.S. Patent No. 8,245,764 (“Karamanis Dec.”)
`
`File history of U.S. Patent No. 8,245,764 (“’764-FH”)
`
`Defendants’ Reply Claim Construction Brief filed on April 12,
`2022 in Asetek Danmark A/S v. Shenzhen Apaltek Co., Ltd., Case
`No. 6:21-cv-501-ADA (W.D. Tex.) (Doc. 61)
`
`U.S. Patent Publication No. 2006/0185830 (“Duan”)
`
`U.S. Patent Publication No. 2006/0185829 (“Duan-I”)
`
`U.S. Patent No. 6,019,165 to Batchelder (“Batchelder”)
`
`Patent Owner’s Response, Paper No. 21 in IPR2020-00523 (Nov.
`30 2020) (“’354-POR”)
`
`U.S. Patent No. 10,078,354 (the “’354 patent”)
`
`Final Written Decision in IPR2020-00523, Paper No. 36 (Aug. 19,
`2021) (“’354-FWD”)
`
`File history of Reexamination Request 95/002,386, U.S. Patent
`No. 8,245,764 (“’764-Rexam-FH”)
`
`Institution Decision, Paper No. 10, IPR2021-01196 (Dec. 28,
`2021) (“’196-Institution”)
`
`Certified Translation of Japanese Unexamined Patent App. Pub.
`No. 2002-151638 to Takayuki Shin (“Shin”)
`
`vii
`
`

`

`U.S. Patent No. 8,245,764
`IPR2023-00668
`
`
`Exhibit
`
`
`
`Petition Requesting Inter Partes Review
`
`Description
`
`1015
`
`
`
`U.S. Patent Publication No. 2004/0052663 (“Laing”)
`
`viii
`
`

`

`Patent No. 8,245,764
`IPR2023-00668
`Cooler Master Co., Ltd. (“CMC” or “Petitioner”) hereby seeks inter partes
`
`Petition Requesting Inter Partes Review
`
`
`
`review of Claims 1-30 (“the Challenged Claims”) of U.S. Patent No. 8,245,764.
`
`(Ex-1001 (the “’764 patent”).)
`
`I.
`
`INITIAL STATEMENT
`The ’764 patent discloses a liquid cooling system used in computer systems.
`
`The use of liquid cooling with what is sometimes referred to as an “all-in-one” cooler
`
`(i.e., a modular pumping mechanism) to cool semiconductor chips was known to
`
`skilled artisans before the ’764 patent, as evidenced by the prior art shown and
`
`discussed below:
`
`Reservoir 
`
`
`
`’764 Patent 
`
`Batchelder 
`
`
`
`(Compare Ex-1001 at 14 with Ex-1008 at 3; Ex-1003,¶35.)
`
`The use of a closed-liquid cooling loop connecting an all-in-one cooler and a
`
`radiator was also generally known before the claimed priority date:
`
`1
`
`

`

`U.S. Patent No. 8,245,764
`IPR2023-00668
`
`
`
`
`Petition Requesting Inter Partes Review
`
`Radiator 
`
`Reservoir 
`
`’764 Patent 
`
`Duan 
`
`
`
`(Compare Ex-1001 at 7 with Ex-1006 at 7; Ex-1003, ¶37.)
`
`The ’764 patent is a continuation of Application No. 11/919,947 (“the ’974
`
`application”). (Ex-1001.) The claims of two related patents—which are also
`
`continuations of the ’974 application and share a number of similarities with the
`
`Challenged Claims—have been found unpatentable or subject to an instituted IPR:
`
`U.S. Patent No.
`
`IPR
`
`Status
`
`10,078,355
`
`IPR2020-00522
`
`Claims 1, 2, 5, 6, 8, 10, 11, and 13 found
`unpatentable
`
`2
`
`

`

`U.S. Patent No. 8,245,764
`IPR2023-00668
`
`
`
`
`Petition Requesting Inter Partes Review
`
`10,599,196
`
`IPR2021-01196
`
`Instituted
`
`II.
`
`IDENTIFICATION OF CHALLENGE UNDER 37 C.F.R. §42.104(B)
`AND RELIEF REQUESTED
`Petitioner respectfully requests that the Challenged Claims of the ’764 patent
`
`be cancelled based on the following grounds of unpatentability:
`
`Ground of
`Unpatentability
`
`’764 Patent Claim(s)
`
`Basis for Rejection under 35
`U.S.C. §103
`
`Ground 1
`
`1-19, 21-27, 29, 30 Rendered obvious over Duan
`
`Ground 2
`
`Ground 3
`
`Ground 4
`
`Ground 5
`
`Ground 6
`
`1-19, 21-27, 29, 30 Rendered obvious over Duan in
`view of Duan-I
`
`Rendered obvious over Duan in
`view of Laing
`
`Rendered obvious over Duan in
`view of Duan-I and further in view
`of Laing
`
`Rendered obvious over Batchelder
`in view of Duan
`
`Rendered obvious over Batchelder
`in view of Duan and further in view
`of Laing
`
`8
`
`8
`
`1-30
`
`8
`
`3
`
`

`

`
`
`U.S. Patent No. 8,245,764
`IPR2023-00668
`
`III. OVERVIEW OF THE ’764 PATENT
`The ’764 patent discloses a cooling system for computers. (Ex-1001, 1:11-
`
`Petition Requesting Inter Partes Review
`
`15.) FIG. 7 of the ’764 patent shows reservoir housing 14, which is connected to
`
`radiator 11 via tubes 24 and 25. Inside radiator 11, the cooling liquid passes a number
`
`of channels for conducting/convecting the heat. (Ex-1001,15:61-16:7.)
`
`
`
`
`
`
`
`
`
`
`
`
`
`
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`
`
`
`
`
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`
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`
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`
`
`
`
`4
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`

`

`U.S. Patent No. 8,245,764
`IPR2023-00668
`
`
`
`
`Petition Requesting Inter Partes Review
`
`FIGS. 17 and 20 further depict the “reservoir” disclosed in the ‘764 patent:
`
`A. Priority Date
`The ’764 patent issued on August 21, 2012 from Application No. 13/269,234
`
`filed on October 7, 2011. (Ex-1001.) Claims 19-30 were added during
`
`Reexamination No. 95/002,386. (Ex-1002.) The ’764 patent claims a priority date
`
`of May 6, 2005. Petitioner does not concede that the ’764 patent is entitled to such
`
`a priority date, and reserves the right to challenge it, but assumes that this date
`
`applies for purposes of this Petition.
`
`IV. PERSON OF ORDINARY SKILL IN THE ART (“POSITA”)
`A POSITA working in the field of liquid cooling systems for computer
`
`systems as of the claimed priority date (5/6/2015) would have been knowledgeable
`
`regarding liquid cooling systems for computer systems, would have had a Bachelor
`
`of Science (B.S.) in electrical or mechanical engineering, or similar advanced post-
`
`5
`
`

`

`U.S. Patent No. 8,245,764
`IPR2023-00668
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`graduate education in this area, or would have possessed at least 2-3 years of
`
`Petition Requesting Inter Partes Review
`
`
`
`experience in liquid cooling systems for computer systems or similar systems. This
`
`POSITA would have been knowledgeable of the concepts, components, and their
`
`functions described as “prior art” in the ’764 patent such as, e.g., pumps, radiators,
`
`fans, reservoirs, and other techniques of heat dissipation and liquid cooling. (Ex-
`
`1001,1:11-47.) In addition, the POSITA would have been knowledgeable about
`
`electric motors and their components (e.g., electromagnetic coils, rotors, stators,
`
`AC/DC motors, etc.) A person with less education but more relevant practical
`
`experience, depending on the nature of that experience and degree of exposure to
`
`liquid cooling systems for computer systems, could also qualify as a POSITA in the
`
`field of the ’764 patent. (Ex-1003, ¶¶13-18.)
`
`V. CLAIM CONSTRUCTION
`Petitioner submits that the claim terms below should be construed as follows:
`
`A.
`“reservoir”
`Petitioner and Patent Owner have stipulated to construe the term “reservoir”
`
`in the ’764 patent to mean “single receptacle defining a fluid flow path.” (Ex-1005,
`
`2.) (Ex-1003, ¶19.)
`
`B.
`“chamber”
`The parties also stipulated to construe the term “chamber” in the ’764 patent
`
`to mean “compartment within the reservoir.” (Ex-1005, 2.) (Ex-1003, ¶20.)
`
`6
`
`

`

`U.S. Patent No. 8,245,764
`IPR2023-00668
`
`
`
`
`Petition Requesting Inter Partes Review
`
`C.
`“underside” and “upper side” of the “chassis”
`Claim 1 recites “a double-sided chassis adapted to mount a pump configured
`
`to circulate a cooling liquid, the pump comprising a stator and an impeller, the
`
`impeller being positioned on the underside of the chassis and the stator being
`
`positioned on the upper side of the chassis and isolated from the cooling liquid”
`
`(emphasis added). A POSITA would have understood the “upper side of the chassis”
`
`to mean the side isolated from the cooling liquid and the “underside of the chassis”
`
`to mean the other side contacting the cooling liquid. (Ex-1003, ¶21.)
`
`D. “below”
`The term “below” by itself appears in the following phrase in claim 1: “a pump
`
`chamber including the impeller and formed below the chassis[.]” Because the
`
`“impeller” is positioned on the underside of the chassis (i.e., the side contacting the
`
`cooling liquid) and included in the “pump chamber,” a POSITA would have
`
`understood the “pump chamber” to be “formed below the chassis” on the “underside
`
`of the chassis” contacting the cooling liquid. (Ex-1003, ¶22.)
`
`E.
`“below … vertically”
`The term “below … vertically” appears in the following phrase in claim 1: “a
`
`thermal exchange chamber formed below the pump chamber and vertically spaced
`
`apart from the pump chamber[.]” Petitioner and Patent Owner have stipulated that
`
`“vertically spaced apart” means “vertically arranged (with reference to each other
`
`7
`
`

`

`U.S. Patent No. 8,245,764
`IPR2023-00668
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`and the heat exchanging interface) chambers” (with “chamber” construed as
`
`Petition Requesting Inter Partes Review
`
`
`
`above).” (Ex-1005, 2.) A POSITA would have understood “below…vertically” to
`
`mean that the “thermal exchange chamber” is “formed below the pump
`
`chamber…vertically” with
`
`reference
`
`to
`
`each
`
`other
`
`and
`
`the
`
`heat
`
`exchanging interface. (Ex-1003, ¶23.)
`
`VI. OVERVIEW OF PRIOR ART
`A. Duan (Ex-1006)
`U.S. Patent Publication No. 2006/0185830 (“Duan”) published on August 24,
`
`2006 from Application No. 11/060,442, which was filed on February 18, 2005.
`
`Duan is prior art under at least pre-AIA 35 U.S.C. §102(e). Duan was not cited
`
`during prosecution.
`
`B. Duan-I (Ex-1007)
`U.S. Patent Publication No. 2006/0185829 (“Duan-I”) published on August
`
`24, 2006 from Application No. 11/060,419, which was filed on February 18, 2005.
`
`Duan-I is prior art under at least pre-AIA 35 U.S.C. §102(e). Duan-I was not cited
`
`during prosecution of the ’764 patent. U.S. Patent No. 7,325,591, which issued from
`
`Duan-I, was cited during Reexamination No. 95/002,386, but not in the manner
`
`proposed in this Petition (as a secondary reference combined with Duan). (Ex-1012.)
`
`8
`
`

`

`U.S. Patent No. 8,245,764
`IPR2023-00668
`
`
`
`
`Petition Requesting Inter Partes Review
`
`C. Batchelder (Ex-1008)
`U.S. Patent No. 6,019,165 (“Batchelder”) issued on February 1, 2000. (Ex-
`
`1006, [11], [45].) Batchelder is prior art to the ’764 patent under at least pre-AIA 35
`
`U.S.C. §102(a). Batchelder was identified in an IDS during prosecution of the ’764
`
`patent, but not cited by the Examiner. (Ex-1004.)
`
`D. Laing (Ex-1008)
`U.S. Patent Publication No. 2004/0052663 (“Laing”) published March 18,
`
`2004 from Application No. 10/434,307, which was filed on May 7, 2003. Laing is
`
`prior art to the ’764 patent under at least pre-AIA 35 U.S.C. §102(a). Laing was not
`
`cited during prosecution of the ’764 patent. (Ex-1004.) Laing was cited during
`
`Reexamination No. 95/002,386, but not in the manner proposed in this Petition (as
`
`a secondary reference combined with Duan or Batchelder). (Ex-1012.)
`
`VII. CLAIM ELEMENT NUMBERING KEY
`Because the Challenged Claims have similar claim elements, they are
`
`numbered as follows for the element-by-element invalidity analyses in Section VIII.
`
`[1-PRE]
`1. A cooling system for a
`heat-generating
`component, comprising:
`
`’764 Claim Limitations
`[10-PRE]
`10. A cooling system for a
`computer system,
`comprising:
`
`[15-PRE]
`15. A cooling system
`for a heat-generating
`component,
`comprising:
`
`9
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`

`

`U.S. Patent No. 8,245,764
`IPR2023-00668
`
`
`[1-a]
`a double-sided chassis
`adapted to mount a pump
`configured to circulate a
`cooling liquid, the pump
`comprising a stator and
`an impeller, the impeller
`being positioned on the
`underside of the chassis
`and the stator being
`positioned on the upper
`side of the chassis and
`isolated from the cooling
`liquid;
`
`[1-b]
`a reservoir adapted to
`pass the cooling liquid
`therethrough, the
`reservoir including:
`
`
`
`
`Petition Requesting Inter Partes Review
`
`’764 Claim Limitations
`[10-a]
`a centrifugal pump adapted
`to circulate a cooling liquid,
`the pump including: an
`impeller exposed to the
`cooling liquid; and a stator
`isolated from the cooling
`liquid;
`
`[15-a]
`a pump adapted to
`circulate a cooling
`liquid, the pump
`including: an impeller
`exposed to the cooling
`liquid; and a stator
`isolated from the
`cooling liquid;
`
`
`[15-b]
`a reservoir including
`
`
`[10-b]
`a reservoir configured to be
`thermally coupled to a heat-
`generating component of
`the computer system, the
`reservoir including:
`
`
`10
`
`

`

`U.S. Patent No. 8,245,764
`IPR2023-00668
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`
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`Petition Requesting Inter Partes Review
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`’764 Claim Limitations
`
`[15-c]
`an impeller cover, an
`intermediate member
`and
`
`
`
`[15-e]
`wherein a top wall of
`the reservoir and the
`impeller cover define a
`pump chamber for
`housing the impeller,
`and the intermediate
`member and the heat
`exchange interface
`define a thermal
`exchange chamber, the
`
`See [1-d]&[1-e]
`
`[1-c]
`a pump chamber
`including the impeller
`and formed below the
`chassis, the pump
`chamber being defined by
`at least an impeller cover
`having one or more
`passages for the cooling
`liquid to pass through;
`
`
`[10-c]
`a thermal exchange
`chamber adapted to be
`positioned in thermal
`contact with the heat-
`generating component;
`
`[10-d]
`a separate pump chamber
`vertically spaced part from
`the thermal exchange
`chamber and coupled with
`the thermal exchange
`chamber through one or
`more passages configured
`for fluid communication
`between the pump chamber
`
`11
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`

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`U.S. Patent No. 8,245,764
`IPR2023-00668
`
`
`[1-d]
`a thermal exchange
`chamber formed below
`the pump chamber and
`vertically spaced apart
`from the pump chamber,
`the pump chamber and
`the thermal exchange
`chamber being separate
`chambers that are fluidly
`coupled together by the
`one or more passages;
`and
`
`See Claim 6
`
`
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`Petition Requesting Inter Partes Review
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`’764 Claim Limitations
`and the thermal exchange
`chamber, and
`
`
`pump chamber and the
`thermal exchange
`chamber being spaced
`apart from each other
`in a vertical direction
`and fluidly coupled
`together; and
`
`
`
`
`[10-e]
`wherein at least one of the
`one or more passages is
`offset from a center of the
`impeller.
`
`
`
`12
`
`

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`U.S. Patent No. 8,245,764
`IPR2023-00668
`
`
`See [1-a]
`
`[1-e]
`a heat-exchanging
`interface, the heat-
`exchanging interface
`forming a boundary wall
`of the thermal exchange
`chamber, and configured
`to be placed in thermal
`contact with a surface of
`the heat-generating
`component; and
`
`
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`Petition Requesting Inter Partes Review
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`’764 Claim Limitations
`11. The cooling system of
`claim 10, wherein a top wall
`of the reservoir physically
`separates the impeller from
`the stator.
`
`12. The cooling system of
`claim 10, wherein the
`thermal exchange chamber
`includes a heat-exchange
`interface configured to be
`placed in thermal contact
`with the heat-generating
`component.
`
`
`
`[15-d]
`wherein a first side of
`the heat-exchanging
`interface is in contact
`with a cooling liquid in
`the thermal exchange
`chamber and a second
`side of the heat-
`exchanging interface
`opposite the first side is
`configured to be placed
`in thermal contact with
`a surface of the heat-
`generating component;
`and
`
`
`13
`
`

`

`U.S. Patent No. 8,245,764
`IPR2023-00668
`
`
`[1-f]
`a heat radiator fluidly
`coupled to the reservoir
`and configured to
`dissipate heat from the
`cooling liquid.
`
`
`
`2. The cooling system of
`claim 1, wherein the
`chassis shields the stator
`from the cooling liquid in
`the reservoir.
`
`See [1-a]
`
`
`
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`Petition Requesting Inter Partes Review
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`’764 Claim Limitations
`13. The cooling system of
`claim 10, further including a
`heat radiator fluidly coupled
`to the reservoir using
`flexible conduits, wherein
`the heat radiator is
`configured to be positioned
`remote from the reservoir.
`
`See Claim 9
`
`
`
`[15-f]
`a liquid-to-air heat
`exchanger fluidly
`coupled to the reservoir
`using flexible conduits,
`the heat exchanger
`being configured to be
`positioned remote from
`the reservoir.
`
`
`
`
`
`
`
`
`14
`
`

`

`U.S. Patent No. 8,245,764
`IPR2023-00668
`
`
`3. The cooling system of
`claim 1, wherein the heat-
`exchanging interface
`includes a first side and a
`second side opposite the
`first side, and wherein the
`heat-exchanging interface
`contacts the cooling
`liquid in the thermal
`exchange chamber on the
`first side and the heat-
`exchanging interface is
`configured to be in
`thermal contact with the
`surface of the heat-
`generating component on
`the second side.
`
`
`
`
`
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`’764 Claim Limitations
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`15
`
`

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`U.S. Patent No. 8,245,764
`IPR2023-00668
`
`
`4. The cooling system of
`claim 3, wherein the first
`side of the heat-
`exchanging interface
`includes features that are
`adapted to increase heat
`transfer from the heat-
`exchanging interface to
`the cooling liquid in the
`thermal exchange
`chamber.
`
`5. The cooling system of
`claim 4, wherein the
`features include at least
`one of pins or fins.
`
`
`
`
`
`
`
`
`
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`’764 Claim Limitations
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`
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`17. The cooling system
`of claim 15, wherein
`the first side of the
`heat-exchanging
`interface includes at
`least one of pins or
`fins.
`
`
`16
`
`

`

`U.S. Patent No. 8,245,764
`IPR2023-00668
`
`
`6. The cooling system of
`claim 1, wherein a
`passage of the one or
`more passages that
`fluidly couple the pump
`chamber and the thermal
`exchange chamber is
`offset from a center of the
`impeller.
`
`7. The cooling system of
`claim 1, wherein the
`impeller includes a
`plurality of curved
`blades.
`
`8. The cooling system of
`claim 1, wherein the heat-
`exchanging interface
`includes one of copper
`and aluminum.
`
`
`
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`Petition Requesting Inter Partes Review
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`14. The cooling system of
`claim 10, wherein the fluid
`passage that is offset from
`the center of the impeller is
`positioned tangentially to
`the circumference of the
`impeller.
`
`
`
`
`
`
`
`
`
`17
`
`

`

`U.S. Patent No. 8,245,764
`IPR2023-00668
`
`
`9. The cooling system of
`claim 1, wherein the heat
`radiator is fluidly coupled
`to the reservoir using
`flexible conduits, and the
`heat radiator is
`configured to be
`positioned remote from
`the reservoir.
`
`
`
`
`
`
`
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`Petition Requesting Inter Partes Review
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`’764 Claim Limitations
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`
`
`
`
`18
`
`

`

`
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`Petition Requesting Inter Partes Review
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`16. The cooling
`system of claim 15,
`wherein the impeller
`cover includes a first
`opening radially offset
`from a center of the
`impeller and the
`intermediate member
`includes a second
`passage that is aligned
`with the first opening,
`the first and the second
`opening being
`configured to direct the
`cooling liquid from the
`pump chamber into the
`thermal exchange
`chamber.
`See [15-c] & [15-e]
`
`
`U.S. Patent No. 8,245,764
`IPR2023-00668
`
`
`See [1-c]
`
`’764 Claim Limitations
`See Claim 14
`
`
`
`
`
`19
`
`

`

`U.S. Patent No. 8,245,764
`IPR2023-00668
`
`
`See [1-a], [1-b], and
`Claim 2
`
`
`See [1-d]
`
`
`
`
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`Petition Requesting Inter Partes Review
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`’764 Claim Limitations
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`18. The cooling system
`of claim 15, wherein
`the top wall of the
`reservoir extends
`between the stator and
`the impeller and
`shields the stator from
`the cooling liquid in
`the reservoir.
`
`19. The cooling system
`of claim 1, wherein the
`one or more passages
`include a passage
`configured to direct
`cooling liquid from the
`pump chamber directly
`into the thermal
`exchange chamber.
`
`
`
`
`
`
`
`
`
`20
`
`

`

`U.S. Patent No. 8,245,764
`IPR2023-00668
`
`
`See [1-e]
`
`
`
`
`
`
`
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`Petition Requesting Inter Partes Review
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`’764 Claim Limitations
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`21. The cooling system
`of claim 1, wherein an
`entire surface of the
`heat exchanging
`interface in contact
`with the cooling liquid
`in the reservoir forms
`the boundary wall of
`the thermal exchange
`chamber.
`
`22. The cooling system
`of claim 1, wherein the
`reservoir further
`includes an inlet
`configured to direct the
`cooling liquid into the
`reservoir and an outlet
`configured to discharge
`the cooling liquid from
`the reservoir.
`
`
`
`
`
`
`
`
`
`21
`
`

`

`U.S. Patent No. 8,245,764
`IPR2023-00668
`
`
`See [1-d]
`
`
`See [1-e]
`
`
`
`
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`Petition Requesting Inter Partes Review
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`’764 Claim Limitations
`
`23. The cooling system
`of claim 10, wherein
`the one or more
`passages include a
`passage configured to
`direct cooling liquid
`from the pump
`chamber directly into
`the thermal exchange
`chamber.
`
`25. The cooling system
`of claim 12, wherein an
`entire surface of the
`heat- exchange
`interface in contact
`with the cooling liquid
`in the reservoir forms a
`boundary wall of the
`thermal exchange
`chamber.
`
`
`
`
`
`
`
`
`
`22
`
`

`

`U.S. Patent No. 8,245,764
`IPR2023-00668
`
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`
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`Petition Requesting Inter Partes Review
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`’764 Claim Limitations
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`
`
`
`
`
`
`
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`26. The cooling system
`of claim 10, wherein
`the reservoir further
`includes an inlet
`configured to direct the
`cooling liquid into the
`reservoir and an outlet
`configured to discharge
`the cooling liquid from
`the reservoir.
`
`See Claim 22
`
`
`23
`
`

`

`U.S. Patent No. 8,245,764
`IPR2023-00668
`
`
`
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`Petition Requesting Inter Partes Review
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`’764 Claim Limitations
`
`
`
`
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`27. The cooling system
`of claim 15, wherein
`the pump chamber and
`the thermal exchange
`chamber are fluidly
`coupled together by
`one or more passages,
`the one or more
`passages including a
`passage configured to
`direct cooling liquid
`from the pump
`chamber directly into
`the thermal exchange
`chamber.
`
`See Claim 19
`
`
`
`
`
`
`24
`
`

`

`U.S. Patent No. 8,245,764
`IPR2023-00668
`
`
`
`
`
`See [1-e]
`
`
`
`
`
`Petition Requesting Inter Partes Review
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`’764 Claim Limitations
`
`28. The cooling system
`of claim 15, wherein
`the pump chamber and
`the thermal exchange
`chamber are fluidly
`coupled together by a
`plurality of passages
`positions within the
`reservoir that open into
`the thermal exchange
`chamber.
`
`29. The cooling system
`of claim 15, wherein an
`entire surface of the
`heat exchanging
`interface in contact
`with the cooling liquid
`in the reservoir forms a
`boundary wall of the
`thermal exchange
`chamber.
`
`
`
`
`
`
`
`
`
`25
`
`

`

`U.S. Patent No. 8,245,764
`IPR2023-00668
`
`
`See [1-c]&[1-d]
`
`
`
`
`
`
`
`
`
`Petition Requesting Inter Partes Review
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`’764 Claim Limitations
`
`[30-a]
`30. The cooling system
`of claim 15, wherein
`the pump chamber and
`thermal exchange
`chamber are fluidly
`coupled together by
`one or more passages,
`and
`[30-b]
`the reservoir further
`includes an inlet
`configured to direct the
`cooling liquid into the
`reservoir and an outlet
`configured to discharge
`the cooling liquid from
`the reservoir.
`See Claim 22
`
`
`VIII. SPECIFIC GROUNDS FOR PETITION
`A. GROUNDS 1 & 2: Claims 1-19, 21-27, and 29-30 are rendered
`obvious over Duan by itself or in view of Duan-I.
`The obviousness inquiry evaluates “whether there was an apparent reason to
`
`combine the known elements in the fashion claimed by the patent at issue.” KSR
`
`26
`
`

`

`U.S. Patent No. 8,245,764
`IPR2023-00668
`
`Int’l Co. v. Teleflex Inc.