throbber
Patent No. 7,808,184
`IPR2014-00995
`
`
`
`
`
`UNITED STATES PATENT AND TRADEMARK OFFICE
`_____________________
`
`BEFORE THE PATENT TRIAL AND APPEAL BOARD
`_____________________
`
`
`
`THE GILLETTE COMPANY
`
`Petitioner
`
`v.
`
`ZOND, LLC
`Patent Owner
`
`U.S. Patent No. 7,808,184
`
`_____________________
`
`Inter Partes Review Case No. 2014-00995
`_____________________
`
`PATENT OWNER’s PRELIMINARY RESPONSE
`UNDER 37 CFR § 42.107(a)
`
`
`
`
`
`
`
`

`

`Patent No. 7,808,184
`IPR2014-00995
`
`
`
`
`
`TABLE OF CONTENTS
`
`I.
`
`INTRODUCTION ..................................................................................................................1
`
`II. TECHNOLOGY BACKGROUND ....................................................................................5
`
`A. Overview of Pulsed Plasma Systems ..............................................................................5
`
`B. The ‘184 Patent: Dr. Chistyakov Invents a Pulse Control Technique for
`Rapidly Increasing a Plasma’s Electron Density Without Arcing. ..........................7
`
`III. SUMMARY OF PETITIONER’S PROPOSED GROUNDS ........................................10
`
`IV. CLAIM CONSTRUCTION UNDER 37 C.F.R. §§ 42.104(B)(3) ...................................10
`
`A. Construction of “Weakly Ionized Plasma” and “Strongly Ionized Plasma” ...........11
`
`B. Petitioner’s Implicit Construction of Other Claim Language is Unclear and
`Does Not Comply with 42 C.F.R. § 42.104(b) or Federal Circuit Law. ...............13
`
`C. Patent Owner’s Construction of “Voltage Pulse Having At Least One of a
`Controlled Amplitude and a Controlled Rise Time.” .............................................14
`
`V. PETITIONER HAS FAILED TO SHOW A REASONABLE LIKELIHOOD
`OF PREVAILING. ..............................................................................................................16
`
`A. Defects Common to All Grounds. ..........................................................................16
`
`1. Petition Fails to Follow the Proper Legal Framework For an Obviousness
`Analysis. ................................................................................................................16
`
`2. Petition Violates Page Restrictions by Incorporating Sixty-Six Pages of
`Claim Charts. ........................................................................................................18
`
`B. Defects in Ground I: Petitioner Failed To Demonstrate That Claims 1, 2, 4,
`5, 11, 12, 14 and 15 Are Obvious Over Mozgrin and Kudryavtsev under
`35 U.S.C. § 103(a). .....................................................................................................19
`
`1. Scope and Content of the Prior Art. ........................................................................20
`
`a. Kudryavtsev .........................................................................................................20
`
`b. Mozgrin’s Experiments. .....................................................................................23
`
`2. Differences Between the Claim and the Art. ..........................................................25
`
`
`
`i
`
`

`

`Patent No. 7,808,184
`IPR2014-00995
`
`
`
`
`3. Level of Skill in the Art. ............................................................................................31
`
`4.
`
`Incompatibility of the References and Absence of Motivation to
`Combine. ...............................................................................................................31
`
`5. Conclusion: Petitioner Has Not Shown a Reasonable Likelihood of Success
`on Any Claim Challenged in Ground I. ...................................................................34
`
`6. Ground I: Dependent claims 2 and 12 ....................................................................35
`
`7. Ground I: Dependent claims 4 and 14 ....................................................................35
`
`8. Ground I: Claims 5 and 15. ......................................................................................36
`
`A. Defects In Ground II: Petitioner Failed To Demonstrate A Reasonable
`Likelihood That Claims 1, 2, 4, 5, 11, 12, 14 and 15 Are Obvious Over
`Mozgrin and Mozgrin’s Thesis under 35 U.S.C. § 103(a). .....................................38
`
`1. The Petition Fails to Prove that Mozgrin’s Thesis is Prior Art. ............................38
`
`2. Mozgrin Thesis Does Not Teach the Claimed Invention ......................................41
`
`B. Defects In Ground III: Petitioner Failed To Demonstrate A Reasonable
`Likelihood That Claims 3 and 13 Are Obvious Over Mozgrin,
`Kudryavtsev and Wang under 35 U.S.C. § 103(a). .................................................43
`
`C. Defects In Ground IV: Petitioner Failed To Demonstrate A Reasonable
`Likelihood That Claims 3 and 13 Are Obvious Over Mozgrin, Mozgrin’s
`Thesis, and Wang under 35 U.S.C. § 103(a). ...........................................................45
`
`D. Defects In Ground V: Petitioner Failed To Demonstrate A Reasonable
`Likelihood That Claims 1 – 5, and 11 – 15 Are Obvious Over Wang and
`Kudryavtsev under 35 U.S.C. § 103(a). ....................................................................46
`
`1. Ground V: Dependent Claims 2, 12, 3, 13, 4, and 14. ...........................................49
`
`2. Ground V: Dependent Claims 5, 15. .......................................................................49
`
`VI. CONCLUSION ......................................................................................................................52
`
`
`
`
`
`
`
`
`
`ii
`
`

`

`Patent No. 7,808,184
`IPR2014-00995
`
`
`
`
`Exhibit No.
`Ex. 2001
`
`Ex. 2002
`
`EXHIBIT LIST
`
`Description
`Information Disclosure Statement
`
`Webster’s New World College
`Dictionary, 4th Edition, 2008
`
`Ex. 2003
`
`U.S. Patent No. 6,896,773
`
`Ex. 2004
`
`U.S. Patent No. 6,806,652
`
`
`
`
`
`
`
`
`
`
`iii
`
`

`

`Patent No. 7,808,184
`IPR2014-00995
`
`
`
`
`I.
`
`Introduction
`
`The Petitioner has represented in a motion for joinder (paper no. 6) that
`
`this petition “is identical to the Intel IPR in all substantive respects, includes
`
`identical exhibits, and relies upon the same expert declarant.” Accordingly,
`
`based upon that representation, the Patent Owner opposes review on the same
`
`basis presented in opposition to Intel’s request no. IPR2014-00455, which is
`
`repeated below.
`
`The present petition for inter partes review of U.S. Patent No. 7,808,184
`
`(“the ‘184 patent”) relies solely on theories of obviousness woven almost
`
`entirely from prior art references1 already considered by the patent office2 but
`
`without persuasive reasons why the outcome should be any different here. In
`
`fact, it does not even address the requisite factual inquiries for an obviousness
`
`analysis as set forth by the Supreme Court,3 and skirts several other significant
`
`
`1 Ex. 1003, Mozgrin; Ex. 1004, Kudyavtsev; Ex. 1005, Wang.
`
`2 Ex. 2001, Information Disclosure Statement, pgs. 2, 6.
`
`3 Graham v. John Deere Co., 383 U.S. 1, 17-18, 148 USPQ 459, 467 (1966); KSR
`
`Int’l Co. v. Teleflex Inc., 550 U.S. 398, 399 (2007) (“[T]he [Graham] factors
`
`define the controlling inquiry”); Liberty Mutual v. Progressive Casualty, CMB-
`
`2012-00003, paper 7 at 2 – 3.
`
`
`
`1
`
`

`

`Patent No. 7,808,184
`IPR2014-00995
`
`
`
`procedural requirements:
`
`1.
`
`It cites to a student thesis without proof that the thesis was a
`
`prior “printed publication” as required by 35 U.S. C.
`
`§311(b);
`
`2.
`
`It fails to adequately identifying how key language in the
`
`challenged claims is construed for purposes if its comparison
`
`to the art, as required by rule §42.104(b)(3); and
`
`3.
`
`It improperly incorporates sixty-six pages of claim charts as
`
`exhibits in the face of rules §42.24(a)(i) and §42.6(a)(3).
`
`For at least these reasons, the Petition should be denied.
`
`The Petition relies primarily on the combined teachings of Mozgrin,
`
`Kudryavtsev, and Wang,4 each of which was considered by the Examiner
`
`before he allowed the claims of the ‘184 patent.5 The allowed claims recite a
`
`method for forming a strongly ionized plasma by, inter alia, generating a
`
`voltage pulse having a controlled amplitude and/or a controlled rise time to
`
`achieve a rapid increase in electron density without forming an arc. The
`
`cited references all describe pulses for generating a plasma, but none disclose
`
`the claimed type of “control.”
`
`
`4 Ex. 1003, Mozgrin; Ex. 1004, Kudyavtsev; Ex. 1005, Wang.
`
`5 Ex. 2001, Signed Information Disclosure Statement.
`
`
`
`2
`
`

`

`Patent No. 7,808,184
`IPR2014-00995
`
`
`
`
`The Petition does not identify what claim interpretation it uses for the
`
`control language, and strategically refrains from identifying the differences
`
`between the claims and its cited art. Instead it argues that certain claim
`
`features are taught by “the combination of Mozgrin and Kudryavtsev” or
`
`“the combination of Wang and Kudryavtsev.”6 The Petitioner thereby avoids
`
`admitting the shortcomings of Mozgrin, Kudryavtsev and Wang, but in doing
`
`so denies the Board a proper Graham analysis7 required for assessing
`
`obviousness.
`
`The Petitioner’s reticence about its interpretation of key claim language
`
`coupled with its refusal to acknowledge the differences between the claims and
`
`art, do not “provide a statement of the precise relief request for each
`
`challenged claim” as required by 37 C.F.R. §42.102. Instead, the Petition
`
`effectively forces the Patent Owner “to conjure up arguments against its own
`
`patent.”8 The Board has previously warned against this, noting that it will not
`
`“take the side of the Petitioner to salvage an inadequately expressed ground,”
`
`
`6 Petition at 50.
`
`7 Graham v. John Deere Co., 383 U.S. 1, 17-18, 148 USPQ 459, 467 (1966);
`
`8 Liberty Mutual Insurance Co. v. Progressive Casual Insurance Com., CBM 2012-
`
`00003, paper 8, page 14.
`
`
`
`3
`
`

`

`Patent No. 7,808,184
`IPR2014-00995
`
`
`
`and will “address only the basis, rationale, and reasoning put forth by the
`
`Petition and resolve all vagueness and ambiguity in Petitioner’s arguments
`
`against the Petitioner.”9
`
`Lastly, the Petitioner tries to convince the Board that Zond
`
`misrepresented Mozgrin’s teachings during prosecution of Zond’s U.S. patent
`
`number 7,147,759 (“the ‘759 Patent”).10 A mere glance at the record reveals to
`
`the contrary: 11 In the alleged misrepresentation, Zond argued that Mozgrin
`
`does not teach a process in which “ground state atoms” are excited to form
`
`“excited atoms,” and then the excited atoms are “ionizing without forming an
`
`arc.”12 This is true. But Petitioner accuses Zond of wrongly asserting that
`
`“Mozgrin does not teach ‘without forming an arc.’”13 Petitioner significantly
`
`distorts Zond’s arguments by clipping the portion linked with other aspects of
`
`the claim. Zond clearly did not mischaracterize Mozgrin, and the Petitioner’s
`
`
`9 Id. at page 14
`
`10 Ex. 1013, ‘759 Patent.
`
`11 Petition at p. 24.
`
`12 Ex. 1014, Response of May 2, p. 13 – 16.
`
`13 Petition at p. 24.
`
`
`
`4
`
`

`

`Patent No. 7,808,184
`IPR2014-00995
`
`
`
`strained attempt to inject this as an issue speaks to the weakness of the
`
`Petition, to say the least.
`
`In short, the Petition does not precisely state the relief requested14 and
`
`fails to demonstrate a reasonable likelihood that any challenged claim is
`
`unpatentable.15 On the basis of the record presented in the present Petition,
`
`review should be denied.
`
`II. Technology Background
`
`A. Overview of Pulsed Plasma Systems
`
`A “plasma” is a gaseous mixture of electrons, positive ions and neutral
`
`molecules that can be formed by applying a strong electric field to a gas:
`
`A plasma can be created in a chamber by igniting a direct current
`
`electric discharge between two electrodes in the presence of a gas
`
`feed. The electrical discharge generates electrons in the feed gas
`
`that ionize atoms thereby creating the plasma.16
`
`A simplified illustration of a plasma formed between a pair of electrodes 238,
`
`216 is illustrated below from figure 5B of related Patent No. 6,896,773:17
`
`
`14 37 C.F.R. § 42.104(b).
`
`15 37 C.F.R. § 42.108(c).
`
`16 Ex. 1001, ‘184 Patent, col. 1, lines 16 – 20; see also col. 9, line 61 – col. 10,
`
`lines 48.
`
`17 Ex. 2003, ’773 patent.
`
`
`5
`
`

`

`
`
`Patent No. 7,808,184
`IPR2014-00995
`
`
`
`
`A plasma is on average electrically neutral because there are approximately as
`
`many negative electrons in the plasma as positive ions. However, the density
`
`of charged particles can vary greatly depending on the strength of the applied
`
`electric field and the length of time it has been applied. The figure 5D from the
`
`‘773 patent18 below shows a “strongly ionized plasma” having a significantly
`
`higher density of charged particles than in the figure above, resulting from a
`
`stronger electric field applied across the electrodes:
`
`It is well known that charged particles will move in the presence of an
`
`electric field. As a result, “high electric currents through a plasma can result
`
`
`
`
`18 Ex. 2003, ‘773 Patent.
`
`
`
`6
`
`

`

`Patent No. 7,808,184
`IPR2014-00995
`
`
`
`in overheating the electrodes.”19 One known solution to the heat problem is to
`
`limit the duration of the strong electric field to short bursts or pulses that
`
`temporarily provide the field strength needed to form a dense plasma, but at a
`
`“lower average power” that generates less heat.20 However, voltage pulses that
`
`are high enough to create the desired plasma density “can also cause arcing
`
`which can damage the electrodes and contaminate the work piece.”21
`
`B. The ‘184 Patent: Dr. Chistyakov Invents a Pulse Control
`Technique for Rapidly Increasing a Plasma’s Electron
`Density Without Arcing.
`
`To overcome the problems in the prior art, Dr. Chistyakov invented a
`
`pulse control technique that rapidly increases a plasma’s electron density to
`
`form a strongly-ionized plasma, but without arcing. Although it was known
`
`that a rapid transition of a plasma into a strongly ionized state increases the
`
`risk of arcing,22 Dr. Chistyakov taught that such a rapid transition can be
`
`accomplished without arcing by controlling the amplitude and/or rise time of
`
`the pulse.
`
`
`19 Ex. 1001, ‘184 Patent, col. 1, lines 24 – 25.
`
`20 Ex. 1001, ‘184 Patent, col. 1, lines 31 – 33.
`
`21 Ex. 1001, ‘184 Patent, col. 1, lines 44 – 46.
`
`22 Ex. 1001, ‘184 Patent, col. 1, lines 34 – 37.
`
`
`
`7
`
`

`

`Patent No. 7,808,184
`IPR2014-00995
`
`
`
`
`
`Dr. Chistakov implemented such control with a pulsed power supply
`
`that “can be programed to generate pulses having various shapes.”23 Figure
`
`5C of the ‘184 patent shows a multi-stage voltage pulse, wherein “the desired
`
`pulse shape requested from the pulsed power supply 102 are superimposed in
`
`dotted lines 304’’.”24
`
`
`
`The programmed voltage pulse has three stages – a first stage 306’’ during
`
`which a weakly ionized plasma is formed, and a pair of second stages 370, 380
`
`during which the weak plasma transitions to a strongly ionized state and is
`
`sustained in that condition.25 In the first stage, the desired voltage level 306’’ is
`
`
`23 Ex. 1001, ‘184 patent, col. 6, lines 8 - 10.
`
`24 Ex. 1001, ‘184 patent, col. 11, lines 57 – 60.
`
`25 Ex. 1001, ‘184 Patent, col. 14, line 50 – col. 15, line 46.
`
`
`
`8
`
`

`

`Patent No. 7,808,184
`IPR2014-00995
`
`
`
`sufficient to ignite and sustain the weakly ionized plasma.26 At the next stage,
`
`the pulse’s voltage increases sharply to a high level 370. This “shifts the
`
`electron energy distribution in the weekly-ionized plasma to higher energies
`
`thereby causing a rapid increase in the ionization rate.”27
`
`Since plasmas are prone to arcing when the rate of ionization is
`
`increasing this rapidly,28 the power supply soon drops its desired output
`
`voltage to the level 380 while the plasma density is still growing, but before it
`
`leaps into an arc. At level 380, the voltage is still strong enough to continue
`
`growing the plasma density (as suggested by the continuing rise in current), but
`
`now at a safer pace.
`
`This example shows that by carefully controlling the generated pulse
`
`amplitude at selected moments and by selected amounts, a system can rapidly
`
`increase the electron density to quickly transition a plasma to a strongly-
`
`ionized condition, while still restraining the plasma from arcing. As the patent
`
`explains, “consequently, the initial plasma transitions in a relatively short
`
`
`26 Ex. 1001, ‘184 Patent, col. 14, lines 52 - 60.
`
`27 Ex. 1001, ‘184 Patent, col. 14, lines 23 – 26; col. 15, lines 6 – 24.
`
`28 Ex. 1001, ‘184 Patent, col. 1, lines 34 – 37.
`
`
`
`9
`
`

`

`Patent No. 7,808,184
`IPR2014-00995
`
`
`
`period of time from a weakly ionized condition to a strongly ionized
`
`condition.”29
`
`III. Summary of Petitioner’s Proposed Grounds
`
`For the Board’s convenience, here is a summary of the Petition’s proposed
`
`claim rejections:
`
`Ground
`I
`II
`III
`IV
`V
`
`Claims
`1, 2, 4, 5, 11, 12, 14, 15
`1, 2, 4, 5, 11, 12, 14, 15
`3, 13
`3, 13
`1 – 5; and 11 - 15
`
`Art
`Kudryavtsev
`Mozgrin
`Mozgrin Thesis
`Mozgrin
`Mozgrin Kudryavtsev
`Wang
`Mozgrin Mozgrin Thesis
`Wang
`Wang
`Kudryavtsev
`
`IV. Claim Construction Under 37 C.F.R. §§ 42.104(b)(3)
`
`Pursuant to Rule §42.104(b)(3), the Petitioner “must identify [] how the
`
`claim is to be construed” for purposes of comparing the challenged claim the
`
`cited art. The present Petition construes only the claimed phrases “strongly-
`
`ionized plasma” and “weakly-ionized plasma.” For all other claim language it
`
`offers no explicit construction, leaving the reader to infer the Petitioner’s
`
`“interpretation” from its allegations that the claimed features are taught by the
`
`prior art.
`
`The proposed explicit constructions and the interpretations implicit in
`
`the Petition’s analysis, are both unreasonable as explained below.
`
`
`
`
`29 Ex. 1001, ‘184 Patent, col. 15, lines 31 – 34.
`10
`
`
`

`

`Patent No. 7,808,184
`IPR2014-00995
`
`
`
`
`A. Construction of “Weakly Ionized Plasma” and “Strongly
`Ionized Plasma”
`
`The Petitioner’s proposed constructions of the claim terms “strongly
`
`ionized plasma,” and “weakly ionized plasma” are wrong because they are not
`
`the broadest reasonable constructions consistent with the specification. In
`
`particular, the Petitioner’s proposed construction of “strongly ionized plasma”
`
`as a “higher density plasma” is wrong because the proposed construction reads
`
`the claim term “ionized” out of the claim. That is, the Petitioner’s proposed
`
`construction of “strongly ionized plasma” is incomplete because it does not
`
`specify what the term “density” refers to.
`
`The proper construction of “strongly ionized plasma” is “a plasma with
`
`a relatively high peak density of ions.” This proposed construction specifies
`
`that the term “density” refers to ions and therefore, is consistent with the claim
`
`language. Moreover, the proposed construction is also consistent with the
`
`specification of the ’184 patent which indicates that a strongly ionized plasma
`
`is also referred to as a “high-density plasma,”30 and which says that the “peak
`
`plasma density can be controlled by controlling the …. voltage pulse.”31 In
`
`addition, the proposed construction is consistent with the specification of the
`
`
`30 Ex. 1001, ‘184 patent, col. 7, lines 12 - 13.
`
`31 Ex. 1001, ‘184 patent, col. 8, lines 3 – 4.
`
`
`
`11
`
`

`

`Patent No. 7,808,184
`IPR2014-00995
`
`
`
`‘759 patent that refers to “strongly ionized plasma [as] having a large ion
`
`density.”32 The term ‘strongly-ionized plasma’ is defined herein to mean a
`
`plasma with a relatively high peak density of ions.
`
`For similar reasons, the proper construction of the claim term “weakly
`
`ionized plasma” is “a plasma with a relatively low peak density of ions.” In
`
`particular, the specification of the ‘184 patent says that “a weakly ionized
`
`plasma [has] a relatively low-level of ionization,”33 and indicates that a weakly-
`
`ionized plasma is also referred to as a “low-density plasma.”34 Furthermore,
`
`the specification of a related patent number 6,806,652 (“the ‘652 Patent”)35
`
`states that “[t]he term ‘weakly-ionized plasma’ is defined herein to mean a
`
`plasma with a relatively low peak plasma density. The peak plasma density of the
`
`weakly ionized plasma depends on the properties of the specific plasma
`
`processing system.”
`
`
`32 Ex. 1013, ‘759 patent, col. 10, lines. 4-5.
`
`33 Ex. 1001, ‘184 patent, col. 17, lines 24 – 25.
`
`34 Ex. 1001, ‘184 patent, col. 6, lines 58 - 59.
`
`35 Ex. 2004, ‘652 Patent.
`
`
`
`12
`
`

`

`Patent No. 7,808,184
`IPR2014-00995
`
`
`
`
`B.
`
`Petitioner’s Implicit Construction of Other Claim Language
`is Unclear and Does Not Comply with 42 C.F.R. § 42.104(b)
`or Federal Circuit Law.
`
`Petitioner’s comparison of the claim to the prior art gives no apparent
`
`weight to word “controlled” and its qualifiers - “rapid increase in electron
`
`density” and “without forming an arc.” Treating claim terms as superfluous is
`
`“ a methodology of claim construction that [the Federal Circuit] has
`
`denounced.”36 Furthermore, to the extent that the Petitioner contends that it
`
`did attach meaning of this claim language, it did not “identif[y] how the
`
`challenged claim is to be construed” as required by 42 C.F.R. § 42.104(b).
`
`Accordingly, it did not “provide a statement of the precise relief request for
`
`each challenged claim” and should therefore be denied.37
`
`
`
`
`
`
`
`
`
`
`
`
`36 Stumbo v. Eastman Outdoors, Inc., 508 F.3d 1358, 1362 (Fed. Cir. 2007).
`
`37 42 C.F.R. § 42.104(b).
`
`
`13
`
`

`

`Patent No. 7,808,184
`IPR2014-00995
`
`
`
`
`C. Patent Owner’s Construction of “Voltage Pulse Having At
`Least One of a Controlled Amplitude and a Controlled Rise
`Time.”
`For the reasons stated below, the broadest reasonable construction of
`
`this phrase is as follows:
`
`Claim Language at Issue
`
`Proposed Construction
`
`Generating a voltage pulse having
`at least one of a controlled
`amplitude and a controlled rise
`time that increases an ionization
`rate so that a rapid increase in
`electron density and a formation of
`a strongly ionized plasma occurs
`without forming an arc …”
`
`Generating a voltage pulse whose
`amplitude and/or rise time are directed or
`restrained to increase an ionization rate so
`that a rapid increase in electron density
`and a formation of a strongly ionized
`plasma occurs without forming an arc.
`
`
`As is known to those skilled in the art, a voltage pulse applied across a
`
`plasma will have a rise time based, inter alia, on the complexity of the
`
`impendence load. They also know that impedance of a plasma decreases as
`
`the electron density grows, thereby dropping the resistive load seen by the
`
`voltage source.38
`
`The claimed step of generating a voltage pulse requires the pulse’s
`
`amplitude and/or rise time to be “controlled” (despite such changes in
`
`38 Ex. 1001, ‘184 patent, col. 6, lines 33 – 38 (“The impedance of the plasma
`
`decreases as the current density in the plasma increases. The pulsed power
`
`supply 102 attempts to maintain a constant voltage, but the voltage decreases
`
`due to the changing plasma resistive load.”).
`
`
`
`14
`
`

`

`Patent No. 7,808,184
`IPR2014-00995
`
`
`
`impedance) to achieve certain specified plasma conditions. For purposes of
`
`this petition, we therefore need to consider the meaning of the claimed control
`
`in the context of a voltage pulse across a plasma whose impedance changes in
`
`response to the pulse.
`
`Webster’s dictionary defines the noun “control” to mean “the condition
`
`of being directed or restrained.”39 The claim uses the word “controlled” in a
`
`manner consistent with this meaning, thereby requiring direction or restraint of
`
`the pulse so as to achieve the specified plasma conditions - a “rapid” increase
`
`in electron density and a formation of a strongly-ionized plasma, but without
`
`forming an arc.
`
`The specification’s teaching is also consistent with this meaning of
`
`“controlled” in the context of a voltage pulse to a plasma. In the specification,
`
`a programmable power supply directs its output at selected times during the
`
`pulse, to thereby control amplitude and rise time of the pulse in a way that
`
`yields a “rapid” increase in electron density but also restrains the plasma from
`
`arcing as the plasma impedance plummets.40 As shown in one example
`
`depicted in figure 5 and discussed above, the timing and magnitude of these
`
`
`39 Ex. 2002, Webster’s Dictionary.
`
`40 Ex. 1001, ‘184 patent, col. 6, lines 8 – 9, col. 14, line 50 – col. 15 line 46.
`
`
`
`15
`
`

`

`Patent No. 7,808,184
`IPR2014-00995
`
`
`
`events cause the “rapid” increase in electron density, but achieve this quick
`
`transition without arcing.41 Thus, the proposed construction stated above is
`
`also reasonable in view of the specification.
`
`V.
`
`Petitioner Has Failed to Show a Reasonable Likelihood of Prevailing.
`
`A. Defects Common to All Grounds.
`
`
`1.
`
`Petition Fails to Follow the Proper Legal Framework
`For an Obviousness Analysis.
`
`Each of Petitioner’s proposed grounds are based on the alleged
`
`obviousness of the claims in view of selected prior art references. However,
`
`the Petitioner neglects to follow the legal framework for an obviousness
`
`analysis set forth long ago by the Supreme Court.42 That framework requires
`
`consideration of the following factors: (1) the scope and content of the prior
`
`art, (2) any differences between the claimed subject matter and the prior art,
`
`and (3) the level of skill in the art. The Board has previously warned that
`
`
`41 Ex. 1001, ‘`184 patent, col. 15, lines 31 – 34.
`
`42 Graham v. John Deere Co., 383 U.S. 1, 17-18, 148 USPQ 459, 467 (1966); see
`
`also KSR Int’l Co. v. Teleflex Inc., 550 U.S. 398, 399 (2007) (“While the sequence
`
`of these questions might be reordered in any particular case, the [Graham]
`
`factors define the controlling inquiry.”)
`
`
`
`16
`
`

`

`Patent No. 7,808,184
`IPR2014-00995
`
`
`
`failure to identify differences between the cited art and the claims is a basis for
`
`denying a petition:
`
`A petitioner who does not state the differences between
`
`a challenged claim and the prior art, and relies instead on the
`
`Patent Owner and the Board to determine those differences based
`
`on the rest of the submission in the petition risks having the
`
`corresponding ground of obviousness not included for trial for
`
`failing to adequately state a claim for relief. 43
`
`The present Petition does not identify the differences, and instead employs a
`
`rhetorical technique designed to de-emphasize and obscure them. For certain
`
`claim features, the Petition argues that the features are taught by “the
`
`combination of Mozgrin and Kudryavtsev” or ““the combination of Wang
`
`and Kudryavtsev,” leaving the Board to identify the shortcomings of the
`
`references.
`
`This technique, when coupled with the Petitioner’s failure to clearly
`
`identify an interpretation behind key claim limitations, obscures the
`
`
`43 Liberty Mutual v. Progressive Casualty, CMB-2012-00003, paper 7 at 2 – 3.
`
`
`
`17
`
`

`

`Patent No. 7,808,184
`IPR2014-00995
`
`
`
`arguments.44 On this basis alone, inter partes review based on obviousness
`
`should be denied.45
`
`2.
`
`Petition Violates Page Restrictions by Incorporating
`Sixty-Six Pages of Claim Charts.
`
`The Petition attaches five sets of claim charts as exhibits 1019 – 1023,
`
`thereby exceeding the page limits of rule 42.24(a)(i) by over a factor of two.
`
`Petitioner incorporates each chart into its petition with a single sentence,
`
`asserting that its expert witness, Mr. DeVito, “has reviewed the claim chart
`
`and agrees with it.”46 But this technique violates rule 42.6(a)(3)’s prohibition
`
`against incorporating documents by reference.
`
`Petitioner mentions that these claim charts were served on the Patent
`
`Owner in a related litigation, apparently in the hope that this will provide an
`
`exception to the rule.47 The Patent Office Trial Guide advises:
`
`Claim charts submitted as part of a petition … count towards
`
`applicable page limits …. A claim chart from another proceeding
`
`
`44 see, Liberty Mutual v. Progressive Casualty, CMB-2012-00003, paper 8 at 14 - 15.
`
`45 Liberty Mutual v. Progressive Casualty, CMB-2012-00003, paper 7 at 2 – 3;
`
`paper 8 at 14-15.
`
`46 Petition at 15, 34, 40, 41, 43.
`
`47 Petition at 15, 34, 39, 41, and 43.
`
`
`
`18
`
`

`

`Patent No. 7,808,184
`IPR2014-00995
`
`
`
`
`that is submitted as an exhibit however, will not count towards
`
`page limits. 48
`
`However, the trial guide’s reference to claim charts from other proceedings
`
`should not be construed to include charts exchanged between litigants. If
`
`claim charts exchanged in a related litigation can be attached to a petition
`
`without counting against page limits, then rules 42.24(a)(i) and 42.6(a)(3) will
`
`be rendered meaningless when the challenged patent is in litigation: Under
`
`this procedure, litigants would be allowed to supplement their IPR petitions
`
`with any number of claims charts of any size, so long as they first serve them
`
`on opposing counsel.
`
`B. Defects in Ground I: Petitioner Failed To Demonstrate That
`Claims 1, 2, 4, 5, 11, 12, 14 and 15 Are Obvious Over
`Mozgrin and Kudryavtsev under 35 U.S.C. § 103(a).
`
`Petitioner’s ground I is premised on a claim “interpretation” that
`
`essentially ignores the word “controlled” and its relation to the qualifying
`
`language - “so that a rapid increase in electron density and a formation of a
`
`strongly-ionized plasma occurs without forming an arc.” As a result,
`
`Petitioner overlooks several shortcomings of the cited prior art and fails to
`
`demonstrate a reasonable likelihood that the claims are unpatentable.
`
`
`48 Trial Guide at 48764.
`
`
`
`19
`
`

`

`Patent No. 7,808,184
`IPR2014-00995
`
`
`
`
`We now consider Petitioner’s cited art under the framework set forth in
`
`Graham v. Deere.49
`
`1.
`
`Scope and Content of the Prior Art.
`
`In ground I Petitioner combines two prior art references, a publication
`
`by Mozgrin and a publication by Kudryavtsev.
`
`a. Kudryavtsev
`
`Kudryavtsev describes a set of mathematical equations that he hopes
`
`accurately model the rate at which a plasma’s electron density changes in
`
`response to an abrupt increase in an applied electric field.50 Petitioner cites
`
`Kudryavtsev for his mathematical prediction that electron density can, over
`
`time, “increase explosively” if a “constant” electric field is applied long
`
`enough to a pre-ionized gas.51 In this regard, Kudryavtsev’s model shows that
`
`the density initially grows very slowly for a period of time designated “τs”. But
`
`according to the equations, the plasma will eventually enter a “fast stage” if the
`
`external field remains constant:
`
` “[O]nce steady conditions have been reaching during the fast
`
`stage, ionization builds up explosively when the external field is
`
`
`49 Graham v. John Deere Co., 383 U.S. 1, 17-18, 148 USPQ 459, 467 (1966).
`
`50 Ex. 1004, Kudryavtsev, p. 30.
`
`51 Ex. 1004, Kudryavtsev, p. 32, right col. par. 1.
`
`
`
`20
`
`

`

`Patent No. 7,808,184
`IPR2014-00995
`
`
`
`
`constant.”52
`
` “We see by inspecting the form of the above solutions that ne
`
`builds up explosively with time.”53
`
` “The behavior of the increase in ne with time thus enables us to
`
`arbitrarily divide the ionization process into two stages, which we
`
`will call the slow and fast growth stages.”54
`
`To test the accuracy of his equations, Kudryavtsev conducted a variety
`
`of experiments with a device having a pair of electrodes spaced nearly two feet
`
`(52 cm) apart from each other at opposite ends of a narrow tube less than an
`
`inch (2.5 cm) in diameter.55 A gas in the tube was “preionized” by applying a
`
`DC current,” but Kudryavtsev does not say where the

This document is available on Docket Alarm but you must sign up to view it.


Or .

Accessing this document will incur an additional charge of $.

After purchase, you can access this document again without charge.

Accept $ Charge
throbber

Still Working On It

This document is taking longer than usual to download. This can happen if we need to contact the court directly to obtain the document and their servers are running slowly.

Give it another minute or two to complete, and then try the refresh button.

throbber

A few More Minutes ... Still Working

It can take up to 5 minutes for us to download a document if the court servers are running slowly.

Thank you for your continued patience.

This document could not be displayed.

We could not find this document within its docket. Please go back to the docket page and check the link. If that does not work, go back to the docket and refresh it to pull the newest information.

Your account does not support viewing this document.

You need a Paid Account to view this document. Click here to change your account type.

Your account does not support viewing this document.

Set your membership status to view this document.

With a Docket Alarm membership, you'll get a whole lot more, including:

  • Up-to-date information for this case.
  • Email alerts whenever there is an update.
  • Full text search for other cases.
  • Get email alerts whenever a new case matches your search.

Become a Member

One Moment Please

The filing “” is large (MB) and is being downloaded.

Please refresh this page in a few minutes to see if the filing has been downloaded. The filing will also be emailed to you when the download completes.

Your document is on its way!

If you do not receive the document in five minutes, contact support at support@docketalarm.com.

Sealed Document

We are unable to display this document, it may be under a court ordered seal.

If you have proper credentials to access the file, you may proceed directly to the court's system using your government issued username and password.


Access Government Site

We are redirecting you
to a mobile optimized page.





Document Unreadable or Corrupt

Refresh this Document
Go to the Docket

We are unable to display this document.

Refresh this Document
Go to the Docket