`
`UNITED STATES PATENT AND TRADEMARK OFFICE
`__________________________
`BEFORE THE PATENT TRIAL AND APPEAL BOARD
`__________________________
`
`
`MICROSOFT CORPORATION,
`HP INC., DELL INC., DELL TECHNOLOGIES INC.,
`ASUSTEK COMPUTER INC., ASUS GLOBAL PTE. LTD.,
`Petitioners
`v.
`LITL LLC,
`Patent Owner.
`
`
`___________________
`
`IPR2024-00456
`U.S. Patent No. 8,612,888
`_____________________
`
`PETITION FOR INTER PARTES REVIEW
`OF U.S. PATENT NO. 8,612,888
`
`
`
`
`Mail Stop PATENT BOARD
`Patent Trial and Appeal Board
`U.S. Patent & Trademark Office
`P.O. Box 1450
`Alexandria, VA 22313-1450
`
`
`
`

`

`TABLE OF CONTENTS
`
`LISTING OF CHALLENGED CLAIMS ............................................................. X 
`I. 
`INTRODUCTION ....................................................................................... 1 
`II.  GROUNDS FOR STANDING .................................................................... 2 
`III.  STATEMENT OF PRECISE RELIEF REQUESTED FOR
`EACH CLAIM CHALLENGED................................................................. 2 
`’888 PATENT OVERVIEW ....................................................................... 4 
`IV. 
`A.  Specification .............................................................................................. 4 
`B.  Prosecution History ................................................................................... 7 
`C.  Prior Patent Office Proceeding ................................................................. 8 
`V.  DISCRETIONARY DENIAL WOULD BE INAPPROPRIATE
`HERE ........................................................................................................... 9 
`A.  Status of Prior and Co-Pending Litigation ................................................ 9 
`B.  General Plastic ........................................................................................ 10 
`C.  Fintiv ....................................................................................................... 12 
`D.  Section 325(d) ......................................................................................... 12 
`VI.  LEVEL OF ORDINARY SKILL .............................................................. 13 
`VII.  CLAIM CONSTRUCTION ...................................................................... 13 
`A.  “plurality of views of digital media content” .......................................... 14 
`B.  Means-Plus-Function (“MPF”) ............................................................... 14 
`1. 
`“view selector component” ................................................................ 15 
`2. 
`“aggregation component” .................................................................. 15 
`3. 
`“display component” .......................................................................... 15 
`4. 
`“storage component” .......................................................................... 16 
`5. 
`“execution component” ...................................................................... 16 
`VIII.  DETAILED EXPLANATION OF GROUNDS ........................................ 16 
`A.  Ground 1: Obviousness Over Reavey, Martinez, Proctor
`(Claims 1, 2, 24, 26-27) .......................................................................... 16 
`
`- i -
`
`

`

`TABLE OF CONTENTS
`(continued)
`
`Page
`1.  Reavey ................................................................................................ 16 
`2.  Martinez ............................................................................................. 21 
`3.  Proctor ................................................................................................ 22 
`4.  Motivation to Combine ...................................................................... 24 
`5.  Claim 1 ............................................................................................... 27 
`a. 
`1[pre] ............................................................................................. 27 
`b.  1[a] ................................................................................................ 31 
`c. 
`1[b] ................................................................................................ 33 
`d.  1[c] ................................................................................................ 33 
`e. 
`1[d] ................................................................................................ 36 
`f. 
`1[e1] .............................................................................................. 36 
`g.  1[e2] .............................................................................................. 38 
`h.  1[e3] .............................................................................................. 40 
`i. 
`1[f]................................................................................................. 41 
`j. 
`1[g] ................................................................................................ 41 
`k.  1[h] ................................................................................................ 44 
`l. 
`1[i] ................................................................................................. 44 
`6.  Claim 2 ............................................................................................... 46 
`7.  Claim 24 ............................................................................................. 46 
`a. 
`24[a] .............................................................................................. 46 
`b.  24[b] .............................................................................................. 47 
`c. 
`24[c] .............................................................................................. 47 
`
`- ii -
`
`

`

`TABLE OF CONTENTS
`(continued)
`
`Page
`8.  Claim 26 ............................................................................................. 49 
`a. 
`26[pre] ........................................................................................... 49 
`b.  26[a] .............................................................................................. 49 
`c. 
`26[b] .............................................................................................. 49 
`d.  26[c1] ............................................................................................ 50 
`e. 
`26[c2] ............................................................................................ 50 
`f. 
`26[c3] ............................................................................................ 50 
`g.  26[d] .............................................................................................. 50 
`h.  26[e] .............................................................................................. 50 
`i. 
`26[f]............................................................................................... 50 
`j. 
`26[g] .............................................................................................. 50 
`k.  26[h] .............................................................................................. 50 
`9.  Claim 27 ............................................................................................. 50 
`a. 
`27[pre] ........................................................................................... 50 
`b.  27[a] .............................................................................................. 51 
`c. 
`27[b] .............................................................................................. 52 
`d.  27[b][i] .......................................................................................... 52 
`e. 
`27[b][ii] ......................................................................................... 53 
`f. 
`27[b][iii] ........................................................................................ 53 
`g.  27[c] .............................................................................................. 53 
`h.  27[d] .............................................................................................. 53 
`
`- iii -
`
`

`

`TABLE OF CONTENTS
`(continued)
`
`Page
`27[e] .............................................................................................. 54 
`i. 
`27[f]............................................................................................... 55 
`j. 
`B.  Ground 2: Obviousness Over Reavey, Martinez, Proctor, and
`Aldrich (Claims 3-8, 15-17, 20, 21) ........................................................ 55 
`1.  Aldrich ............................................................................................... 55 
`2.  Motivation to Combine ...................................................................... 60 
`3.  Claim 3 ............................................................................................... 62 
`4.  Claim 4 ............................................................................................... 66 
`5.  Claim 5 ............................................................................................... 68 
`6.  Claim 6 ............................................................................................... 69 
`a. 
`6[a] ................................................................................................ 69 
`b.  6[b] ................................................................................................ 70 
`7.  Claim 7 ............................................................................................... 71 
`8.  Claim 8 ............................................................................................... 73 
`9.  Claim 15 ............................................................................................. 75 
`a. 
`15[a] .............................................................................................. 75 
`b.  15[b] .............................................................................................. 77 
`c. 
`15[c] .............................................................................................. 79 
`10.  Claim 16 ............................................................................................. 81 
`11.  Claim 17 ............................................................................................. 83 
`a. 
`17[a] .............................................................................................. 83 
`b.  17[b] .............................................................................................. 84 
`c. 
`17[c] .............................................................................................. 87 
`d.  17[d] .............................................................................................. 89 
`
`- iv -
`
`

`

`TABLE OF CONTENTS
`(continued)
`
`Page
`12.  Claim 20 ............................................................................................. 92 
`a. 
`20[a] .............................................................................................. 92 
`b.  20[b] .............................................................................................. 92 
`c. 
`20[c] .............................................................................................. 93 
`d.  20[d] .............................................................................................. 95 
`13.  Claim 21 ............................................................................................. 96 
`a. 
`21[a] .............................................................................................. 96 
`b.  21[b] .............................................................................................. 96 
`C.  Ground 3: Obviousness Over Reavey, Martinez, Proctor, and
`Pröll (Claim 25)....................................................................................... 97 
`1.  Pröll .................................................................................................... 97 
`2.  Motivation to Combine ...................................................................... 99 
`3.  Claim 25 ........................................................................................... 100 
`a. 
`25[a] ............................................................................................ 100 
`b.  25[b] ............................................................................................ 102 
`D.  Ground 4: Obviousness Over Reavey, Martinez, Proctor,
`Aldrich, and Chao (Claims 9, 18, 19) ................................................... 103 
`1.  Chao ................................................................................................. 103 
`2.  Motivation to Combine .................................................................... 106 
`3.  Claim 9 ............................................................................................. 107 
`4.  Claim 18 ........................................................................................... 110 
`a. 
`18[a] ............................................................................................ 110 
`b.  18[b] ............................................................................................ 110 
`5.  Claim 19 ........................................................................................... 111 
`
`- v -
`
`

`

`TABLE OF CONTENTS
`(continued)
`
`Page
`
`E.  Ground 5: Obviousness Over Reavey, Martinez, Proctor, and
`Chao (Claim 22) .................................................................................... 113 
`1.  Claim 22 ........................................................................................... 113 
`IX.  CONCLUSION ........................................................................................ 115 
`X.  MANDATORY NOTICES ..................................................................... 116 
`A.  Real Party in Interest ............................................................................. 116 
`B.  Related Matters ..................................................................................... 116 
`C.  Notice of Counsel and Service Information .......................................... 116 
`
`- vi -
`
`

`

`U.S. Patent 8,612,888
`IPR2024-00456
`
`EXHIBIT LIST
`
`
`
`Reference
`Exhibit
`1001 U.S. Patent No. 8,612,888 (“the ’888 Patent”)
`1002
`File History of the ’888 patent
`1003 Declaration of Dr. Henry Houh in Support of Petition (“Houh
`Decl.”)
`1004 Dr. Henry Houh CV
`1005 RESERVED
`1006 German Patent Application Publication DE10331185A1 (“Pröll”)
`with certified translation
`1007 U.S. Patent 6,137,468 (“Martinez”)
`1008
`Joan Preppernau & Joyce Cox, Step By Step Windows Vista,
`Microsoft Press (Jan. 3, 2007) (“Preppernau”)
`1009 U.S. Patent 5,847,698 (“Reavey”)
`1010 U.S. Patent Application Publication 2006/0227122 A1 (“Proctor”)
`1011 U.S. Patent Application Publication 2006/0062141 A1
`(“Chandhri”)
`1012 U.S. Patent Application Publication 2006/0265390 A1 (“Aldrich”)
`1013 U.S. Patent No. 7,970,240 B1 (“Chao”)
`1014 RESERVED
`1015 RESERVED
`1016 Complaint, LiTL LLC v. ASUSTeK Computer Inc., No. 23-cv-
`00122 (D. Del. Feb. 1, 2023)
`1017 Complaint, LiTL LLC v. Dell Techs. Inc., No. 23-cv-0121 (D. Del.
`Feb. 1, 2023)
`1018 Complaint, LiTL LLC v. HP Inc., No. 23-cv-00120 (D. Del. Feb. 1,
`2023)
`1019 Order Granting Microsoft Intervention, LiTL LLC v. HP Inc., No.
`23-cv-00120 (D. Del. Oct. 16, 2023)
`
`- vii -
`
`

`

`
`
`U.S. Patent 8,612,888
`IPR2024-00456
`
`Exhibit
`1020
`
`1021
`
`Reference
`Scheduling Order, LiTL LLC v. HP Inc., No. 23-120 (D. Del. Jan.
`11, 2024), ECF No. 44
`Foley, James D., et al., Computer Graphics Principles and
`Practice, Second Edition in C (July 1997)
`1022 Dino Esposito, New Graphical Interface: Enhance Your Programs
`with New Windows XP Shell Features, MSDN Magazine
`1023 Maintenance & Service Guide, HP Pavilion dv1600 Entertainment
`Notebook PC (June 2006)
`1024 Complaint, LiTL LLC v. Lenovo (United States), Inc., No. 20-cv-
`00689 (D. Del. May 22, 2020)
`Stipulation of Dismissal, LiTL LLC v. Lenovo (United States) Inc.,
`No. 20-cv-00689 (D. Del. Feb. 3, 2023)
`1026 RESERVED
`1027
`Fujitsu LifeBook T3000 Tablet PC review: Fujitsu LifeBook
`T3000 Tablet PC, available at
`https://www.cnet.com/reviews/fujitsu-lifebook-t3000-tablet-pc-
`review/
`1028 HP Compaq Tablet PC TC1100 review: HP Compaq Tablet PC
`TC1100, available at https://www.cnet.com/reviews/hp-compaq-
`tablet-pc-tc1100-review/
`1029 Acer TravelMate C110 review: Acer TravelMate C110, available at
`https://www.cnet.com/reviews/acer-travelmate-c110-review/
`1030 OLPC XO-1 (One Laptop Per Child) review: OLPC XO-1 (One
`Laptop Per Child), available at https://www.cnet.com/reviews/olpc-
`xo-1-one-laptop-per-child-review/
`1031 Microsoft Indemnity Request
`1032 RESERVED
`1033 RESERVED
`1034 RealPlayer 7 Plus User Manual
`1035 RESERVED
`1036 Australia Patent Application Publication AU2001100022A4
`
`1025
`
`- viii -
`
`

`

`U.S. Patent 8,612,888
`IPR2024-00456
`
`1038
`
`Reference
`Exhibit
`1037 Apple Reinvents the Phone with iPhone, available at
`https://www.apple.com/newsroom/2007/01/09Apple-Reinvents-
`the-Phone-with-iPhone/
`Twist and Shoot: Nokia N90 makes it première, available at
`https://web.archive.org/web/20140714193817/http://company.noki
`a.com/en/news/press-releases/2005/04/27/twist-and-shoot-nokia-
`n90-makes-its-premiere
`1039 Adobe Photoshop Elements 3.0 Getting Started Guide (2004)
`1040 U.S. Patent 7,433,876 (“Spivack”)
`1041 An Overview of HTML+, available at
`https://web.archive.org/web/19970605134644/https://www.w3.org/
`MarkUp/HTMLPlus/htmlplus_7.html
`
`
`
`
`
`
`
`- ix -
`
`

`

`
`
`LISTING OF CHALLENGED CLAIMS
`Reference Claim Limitations
`
`U.S. Patent 8,612,888
`IPR2024-00456
`
`1[pre]
`
`1[a]
`
`1[b]
`
`1[c]
`
`1[d]
`
`1[e1]
`
`1[e2]
`
`1[e3]
`
`1[f]
`
`1[g]
`
`1[h]
`
`Claim 1
`A method for accessing and managing digital media libraries on a
`streamlined computing device with a plurality of selectable I/O
`profiles, the method comprising:
`displaying a graphical user interface on the computing device,
`wherein the graphical user interface comprises at least a plurality of
`views of digital media content;
`providing for transition between the plurality of views in response
`to selection of an I/O profile;
`providing for transition between the plurality of views in response
`to activation of a view selector component configured to permit a
`user to select one of the plurality of views,
`wherein providing for the transition between the plurality of views
`in response to selection of the I/O profile includes:
`permitting the user to rotate a display component of the computing
`device about a longitudinal axis running along an interface between
`the display component and a base of the streamlined computing
`device;
`wherein rotating the display component about the longitudinal axis
`from a closed mode to a first physical orientation configures the
`computing device into a laptop mode having a first physical
`configuration of the display component and the base, with one of
`the plurality of views as a default display; and
`wherein rotating the display component about the longitudinal axis
`from the closed mode to a second physical orientation configures
`the computing device into another display mode having a second
`physical configuration of the display component and the base, with
`another one of the plurality of views as the default display;
`associating at least one of a plurality of visual representations with
`digital media content;
`executing the association with the at least one of the plurality of
`visual representations with digital media content in response to
`selection;
`transitioning a display on the computing device to a view of the
`digital media content in response to the act of executing the
`association; and
`
`- x -
`
`

`

`
`
`1[i]
`
`2
`
`3
`
`4
`
`5
`
`6[a]
`
`6[b]
`
`7
`
`8
`
`9
`
`U.S. Patent 8,612,888
`IPR2024-00456
`
`providing for display of user digital media content and referenced
`digital media content in the view of the digital media content.
`Claim 2
`The method according to claim 1, further comprising an act of
`displaying in the view user digital media content and referenced
`digital media content in response to the act of executing the
`association with the at least one of the plurality of visual
`representations.
`
`Claim 3
`The method according to claim 2, wherein the act of displaying in
`the view user digital media content and referenced digital media
`content includes an act of accessing a reference to remote digital
`content not controlled by the user in order to display referenced
`digital content.
`
`Claim 4
`The method according to claim 1, further comprising an act of
`associating the at least one of the plurality of visual representations
`with a remote service provider.
`Claim 5
`The method of claim 4, further comprising an act storing the
`association between the at least one visual representation with the
`remote service provider in at least one of a device profile and a user
`profile.
`
`Claim 6
`The method according to claim 1 further comprising acts of:
`configuring access to a remote service; and
`integrating operations provided by the remote service provider into
`the view of the digital media content.
`Claim 7
`The method according to claim 1, wherein the view comprises at
`least one of an album view and a timeline view.
`Claim 8
`The method according to claim 7, further comprising an act of
`displaying digital media content in a body portion of the view.
`Claim 9
`The method according to claim 7, further comprising an act of
`displaying a toggle element in a header portion of the view,
`wherein the toggle element transitions the computing device
`
`- xi -
`
`

`

`
`
`15[a]
`
`15[b]
`
`15[c]
`
`16
`
`17[a]
`
`17[b]
`
`17[c]
`
`17[d]
`
`18[a]
`18[b]
`
`19
`
`U.S. Patent 8,612,888
`IPR2024-00456
`
`display between the album view and the timeline view upon
`selection by a user.
`
`Claim 15
`The method according to claim 7, further comprising acts of:
`providing an aggregation component configured to permit the user
`to select a plurality of digital media content;
`displaying the plurality of digital media content in the body of the
`view; and
`permitting the user to perform operations on the plurality of digital
`media content.
`
`Claim 16
`The method according to claim 15, wherein the act of permitting
`the user to perform operations on the plurality of digital media
`content includes at least one of a share operation, a create channel
`operation, and an order prints operation.
`Claim 17
`The method according to claim 16, wherein the at least one
`operation is a share operation,
`and the method further comprises acts of: identifying any state
`entries for the plurality of digital media content;
`identifying any remote service settings for the plurality of digital
`media content; and
`transmitting a visual representation associated with the plurality of
`digital media content, any state settings, and any remote service
`settings to another streamlined device user.
`Claim 18
`The method according to claim 7, wherein the view is a time view
`and the method further comprises: displaying a timeline navigation
`control in the body of the view, wherein the timeline navigation
`control is configured to provide organization segments, the
`organization segments providing a visual indication of a number of
`digital media content items in each segment.
`Claim 19
`The method according to claim 18, wherein the timeline navigation
`control further comprises a handle responsive to a pointer displayed
`on the computer device, wherein the handle is further responsive to
`select and drag operations.
`Claim 20
`
`- xii -
`
`

`

`
`
`20[a]
`
`20[b]
`
`20[c]
`
`20[d]
`
`21[a]
`
`21[b]
`
`22
`
`24[a]
`
`24[b]
`
`24[c]
`
`25[a]
`
`U.S. Patent 8,612,888
`IPR2024-00456
`
`The method according to claim 1, further comprising acts of:
`permitting the user to share the at least one visual representation,
`including any associated digital media content with another user;
`storing shared information in response to an act of sharing by the
`user; and
`updating any associated digital media automatically for the another
`user,
`wherein the act of updating any associated digital media includes
`acts of: identifying any changes in shared digital media content,
`wherein changes include at least one of addition of digital media
`content associated with the at least one visual representation,
`deletion of digital media content associated with the at least one
`visual representation, edits of digital media content associated with
`the at least one visual representation, and updates of information
`associated with digital media content associated with the at least
`one visual representation.
`Claim 21
`The method according to claim 1, further comprising acts of:
`permitting the user to share the at least one visual representation,
`including any associated digital media content with another user;
`transmitting the at least one visual representation associated with
`the digital media content, any state settings, and any remote service
`settings to another streamlined device user.
`Claim 22
`The method according to claim 1, further comprising an act of
`permitting the user to update date information associated with the
`digital media content.
`Claim 24
`The method according to claim 1, wherein the act of displaying the
`user interface includes: providing a plurality of views of the
`plurality of visual representations of computer content; and
`associating the plurality of visual representations of computer
`content with at least one of the plurality of views, and
`wherein the each of the plurality of visual representations is
`responsive to focus and execution, wherein execution includes
`selection of the visual representation.
`Claim 25
`The method according to claim 1, wherein rotating the display
`component about the longitudinal axis up to approximately 180
`
`- xiii -
`
`

`

`
`
`25[b]
`
`26[pre]
`
`26[a]
`
`26[b]
`
`26[c1]
`
`26[c2]
`
`26[c3]
`
`U.S. Patent 8,612,888
`IPR2024-00456
`
`degrees from the closed mode and configures the computing device
`into a laptop mode with one of the plurality of views as a default
`display; and
`wherein rotating the display component about the longitudinal axis
`configures the computing device into the another display mode
`with another one of the plurality of views as the default display,
`and includes rotating the display component beyond approximately
`180 degrees from the closed mode to configure the computing
`device into an easel mode with another one of the plurality of views
`as the default display.
`Claim 26
`A non-transitory computer-readable medium having computer-
`readable instructions stored thereon that as a result of being
`executed by a computer, instruct the computer to perform the
`method for accessing and managing digital media libraries on a
`streamlined computing device with a plurality of selectable I/O
`profiles, wherein the method comprises:
`displaying a graphical user interface on the computing device,
`wherein the graphical user interface comprises at least a plurality of
`views of digital media content;
`providing for transition between the plurality of views in response
`to selection of an I/O profile, wherein providing for the transition
`between the plurality of views in response to selection of the I/O
`profile includes:
`permitting the user to rotate a display component of the computing
`device about a longitudinal axis running along an interface between
`the display component and a base of the streamlined computing
`device;
`wherein rotating the display component about the longitudinal axis
`from a closed mode to a first physical orientation configures the
`computing device into a laptop mode having a first physical
`configuration of the display component and the base with one of
`the plurality of views as a default display; and
`wherein rotating the display component about the longitudinal axis
`from the closed mode to a second physical orientation configures
`the computing device into another display mode having a second
`physical configuration of the display component and the base with
`another one of the plurality of views as the default display;
`
`- xiv -
`
`

`

`
`
`26[d]
`
`26[e]
`
`26[f]
`
`26[g]
`
`26[g]
`
`27[pre]
`
`27[a]
`
`27[b]
`
`27[b][i]
`
`27[b][ii]
`
`27[b][iii]
`
`U.S. Patent 8,612,888
`IPR2024-00456
`
`providing for transition between the plurality of views in response
`to activation of a view selector component configured to permit a
`user to select one of the plurality of views;
`associating at least one of a plurality of visual representations with
`digital media content;
`executing the association with the at least one of the plurality of
`visual representations with digital media content in response to
`selection;
`transitioning a display on the computing device to a view of the
`digital media content in response to the act of executing the
`association; and
`providing for display of user digital media content and referenced
`digital media content in the view of the digital media content.
`Claim 27
`A system for accessing and managing digital media libraries with a
`plurality of selectable I/O profiles, the system comprising:
`a display component configured to display a graphical user
`interface on a computing device, wherein the graphical user
`interface comprises at least a plurality of views of digital media
`content, wherein the plurality of views include at least one of a
`plurality of visual representations;
`an execution component configured to transition the graphical user
`interface between the plurality of views in response to selection of
`an I/O profile, wherein selecting the I/O profile includes:
`responding to user rotation of a display component of the
`computing device about a longitudinal axis running along an
`interface between the display component and a base of the
`streamlined computing device;
`responding to rotation of the display component about the
`longitudinal from a closed mode to a first physical orientation
`configures the computing device into a laptop mode having a first
`physical configuration of the display component and the base with
`one of the plurality of views as a default display; and
`responding to rotation of the display component about the
`longitudinal axis from the closed mode to a second physical
`orientation configures the computing device into another display
`mode having a second physical configuration of the display
`component and the base with another one of the plurality of views
`as the default display;
`
`- xv -
`
`

`

`U.S. Patent 8,612,888
`IPR2024-00456
`
`a view selector component configured to transition between the
`plurality of views in response to activation;
`a storage component configured to store an association between at
`least one of a plurality of visual representations and digital media
`content;
`wherein the execution component is further configured to execute
`the association with the at least one of the plurality of visual
`representations with digital media content in response to selection
`and transition the display to a view of the digital media content in
`response to the act of executing the association; and
`wherein the display component is configured to display user digital
`media content and referenced digital media content in the view of
`the digital media content.
`
`27[c]
`
`27[d]
`
`27[e]
`
`27[f]
`
`
`
`
`
`- xvi -
`
`

`

`
`I.
`
`INTRODUCTION
`Microsoft Corporation (“Microsoft”); HP Inc. (“HP”); Dell Inc. and Dell
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`U.S. Patent 8,612,888
`IPR2024-00456
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`Technologies Inc. (collectively, “Dell”); and ASUSTeK Computer Inc. and Asus
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`Global Pte. Ltd. (collectively, “ASUS”) (all of which are collectively referred to
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`herein as “Petitioners”) request inter partes review (“IPR”) of claims 1-9, 15-22, and
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`24-27 (“Challenged Claims”) of U.S. Patent 8,612,888 (“the ’888 patent”; EX-
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`1001).
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`In May 2020, LiTL LLC (“PO”) sued Lenovo (United States) Inc. and Lenovo
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`(Beijing) Ltd. (collectively, “Lenovo”) in district court. At that time, PO did not sue
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`any of Petitioners here. Thus, Lenovo alone previously challenged the ’888 patent
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`in an IPR but made significant errors in doing so. Notably, Lenovo failed to prove
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`unpatentability in its IPR based on a limitation (“plurality of views”) the Examiner
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`found in original prosecution was taught by the prior art.
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`Having prevailed in Lenovo’s flawed IPR, PO began a new litigation
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`campaign, suing HP, Dell, and ASUSTek (but not Microsoft) on February 1, 2023.
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`This time, however, PO explicitly identified Windows functionality as a basis for its
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`infringement allegations for certain patents including the ’888 patent, and so
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`Microsoft intervened in those district court suits in October 2023. Petitioners have
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`filed this Petition (their first) within four months of