Judge Profile

THU A. Dang

104 IP cases indexed. Covers patent matters.

Cases Presided Over

104 cases indexed | Page 3 of 4

patent denied · May 7, 2024

BOE Technology Group Co., Ltd. v.Optronic Sciences LLC

· IPR2024-01130

The PTAB denied Optronic Sciences’ request to revisit the institution of six inter partes reviews, finding no extraordinary circumstances and that the deadline for further briefing had passed.

patent instituted · May 7, 2024

BOE Technology Group Co., LTD v.Optronic Sciences LLC

· IPR2024-01134

BOE Technology Group Co., LTD successfully challenged five claims of Optronic Sciences LLC's '9406733 patent, demonstrating a reasonable likelihood of prevailing on unpatentability grounds. The Board issued an institution decision after construing the key term 'auxiliary electrode' to include bus lines and wires.

patent instituted · May 7, 2024

BOE Technology Group Co., LTD v.Optronic Sciences, LLC

· IPR2024-01133

BOE Technology Group Co., LTD successfully petitioned to institute IPR proceedings against Optronic Sciences, LLC regarding display technology patents. The Board granted institution after a favorable claim construction of 'auxiliary electrode,' finding the petitioner demonstrated a reasonable likelihood of prevailing on key grounds.

patent instituted · May 7, 2024

BOE Technology Group Co., Ltd. v.Optronic Sciences LLC

· IPR2024-01130

BOE Technology Group Co., Ltd. successfully petitioned to institute an IPR against Optronic Sciences LLC's patent, leading to a trial decision. The Board found reasonable likelihood of prevailing regarding at least one challenged claim (5-9).

patent Final Written Decision · May 7, 2024

BOE Technology Group Co., LTD v.Optronic Sciences, LLC

· IPR2024-01133

The PTAB issued a Final Written Decision finding all 13 claims unpatentable by preponderance of the evidence. The Board found that the challenged claims were obvious over various combinations of prior art references, including Weaver combined with Lee ’053 and Song.

patent Final Written Decision · May 7, 2024

BOE Technology Group Co., Ltd. v.Optronic Sciences LLC

· IPR2024-01130

The PTAB issued a Final Written Decision finding claims 5 and 6 of patent 7168842 unpatentable based on anticipation (Uekusa) and obviousness (Uekusa/Isoda). Claims 7-9 were not proven unpatentable due to claim clarity issues.

patent instituted · Apr 26, 2024

Microsoft Corporation v.Proxense, LLC

· IPR2024-00846

Microsoft Corporation successfully convinced the PTAB that its biometric authentication claims were not obvious over prior art, leading to the institution of the IPR. The Board found a reasonable likelihood of prevailing on at least one challenged claim, allowing the case to proceed to trial.

patent Final Written Decision · Apr 26, 2024

Microsoft Corporation v.Proxense, LLC

· IPR2024-00846

The PTAB issued a Final Written Decision finding all 29 challenged claims unpatentable over the prior art. The Board found that Burger teaches limitations of Claim 1 across various transaction types, and combining Burger with Robinson or Orsini renders dependent claims obvious.

patent instituted · Apr 19, 2024

Google LLC v.Proxense, LLC

· IPR2024-00783

Apple was granted a PTAB order instituting inter partes review of all 20 claims of the ‘289 patent and joining the ongoing Google IPR. The Board found the petition identical to the earlier Google filing and approved joinder without adding new grounds.

patent terminated or settled · Apr 19, 2024

Google LLC v.Proxense, LLC

· IPR2024-00784

Google and Proxense settled their dispute, leading the PTAB to terminate the IPR over Proxense’s Bluetooth proximity patent.

patent instituted · Apr 19, 2024

Google LLC v.Proxense, LLC

· IPR2024-00784

Google LLC successfully convinced the PTAB to institute IPR proceedings against Proxense, LLC's patent (10073960). The Board found a reasonable likelihood of success on multiple obviousness grounds, particularly regarding device authentication and secure memory.

patent instituted · Apr 19, 2024

Google LLC v.Proxense, LLC

· IPR2024-00783

Google LLC successfully argued that the challenged claims were obvious over multiple combinations of prior art (Dua, Giobbi ’157, Kotola, Buer). The PTAB instituted the IPR on all 20 challenged claims after rejecting the Patent Owner's narrow claim construction arguments. This sets up a significant trial phase regarding wireless security and digital key technology.

patent instituted · Apr 19, 2024

Google LLC v.Proxense, LLC

· IPR2024-00782

Google LLC successfully secured institution in the IPR against Proxense, LLC regarding hybrid device technology. The Board found a reasonable likelihood of prevailing on obviousness grounds (35 U.S.C. § 103) across multiple claims. This decision validates Google's position that the challenged patent is anticipated by prior art combinations.

patent instituted · Apr 19, 2024

Microsoft Corporation v.Proxense, LLC

· IPR2024-00775

Microsoft Corporation successfully petitioned to institute IPR against Proxense, LLC regarding biometric authentication claims. The Board found reasonable likelihood of prevailing on multiple claims based on obviousness over Burger and Robinson.

patent final · Apr 19, 2024

Google LLC v.Proxense, LLC

· IPR2024-00783

The PTAB found all 20 challenged claims unpatentable over various combinations of prior art references. The Board adopted the Petitioner's view that the terms used in the patent provided sufficiently definite structure and that the combination of existing technology rendered the claimed invention obvious.

patent final · Apr 19, 2024

Google LLC v.Proxense, LLC

· IPR2024-00782

The Board found all challenged claims unpatentable, primarily based on obviousness (35 U.S.C. § 103). The Petitioner successfully demonstrated that the claimed hybrid device and its methods were predictable combinations of prior art references like Buer, Lee, Nishikawa, and Dua.

patent denied · Apr 11, 2024

Apple Inc. v.Proxense, LLC

· IPR2025-00074

The PTAB denied Apple's IPR against Proxense because a related review of the same patent had already been instituted in another proceeding.

patent all challenged claims unpatentable · Apr 11, 2024

Apple Inc. v.Proxense, LLC

· IPR2025-00075

Apple Inc. successfully convinced the PTAB that Proxense, LLC’s patent claims were obvious over multiple combinations of prior art references (Dua, Giobbi '157, Kotola). The Board found all 20 challenged claims unpatentable under 35 U.S.C. § 103.

patent terminated or settled · Mar 25, 2024

Vicor Corporation v.Delta Electronics, Inc.

· IPR2024-00705

Vicor and Delta Electronics jointly moved to terminate IPR2024-00705 after reaching a settlement. The Board granted the motion, treating the settlement agreement as confidential business information.

patent denied · Mar 25, 2024

Vicor Corporation v.Delta Electronics, Inc.

· IPR2024-00715

Vicor Corporation's IPR petition against Delta Electronics was denied by the PTAB, finding no reasonable likelihood of prevailing on grounds of anticipation or obviousness. The Board cited insufficient support for combining prior art references and noted that the petitioner employed impermissible hindsight.

patent instituted · Mar 25, 2024

Vicor Corporation v.Delta Electronics, Inc.

· IPR2024-00705

The PTAB institution decision for IPR2024-00705 found reasonable likelihood of success on claims 1-6, despite disputes over claim construction. The Petitioner argued that the combination of prior art references anticipated or rendered the patent obvious in the field of Power Converters/Circuit Boards.

patent denied · Mar 25, 2024

Vicor Corporation v.Delta Electronics, Inc.

· IPR2024-00706

The PTAB denied institution of Vicor Corporation's IPR against Delta Electronics, Inc., finding Petitioner failed to demonstrate a reasonable likelihood of prevailing. The denial hinged on the argument that Petitioner relied on impermissible hindsight bias when combining prior art references for obviousness and anticipation grounds.

patent denied · Mar 25, 2024

Vicor Corporation v.Delta Electronics, Inc.

· IPR2024-00704

The PTAB denied Vicor Corporation's request to institute IPR against Delta Electronics, Inc.'s patent 8711580, finding that the petitioner failed to demonstrate a reasonable likelihood of prevailing on its obviousness grounds.

patent instituted · Feb 27, 2024

Meta Platforms, Inc. v.Sitnet, LLC

· IPR2024-00531

Meta Platforms successfully petitioned the PTAB to challenge Sitnet's patent (11470682) on grounds of obviousness over multiple prior art references. The Board granted institution, allowing Meta to proceed with its IPR challenge against claims 1-20.

patent instituted · Feb 27, 2024

Meta Platforms, Inc. v.Sitnet, LLC

· IPR2024-00530

Meta Platforms, Inc. successfully secured institution of its Inter Partes Review against Sitnet's patent 9877345. The Board found that the petitioner met the likelihood standard for obviousness over multiple prior art references (Gage, Mitchell, Shida).

patent Final Written Decision · Feb 27, 2024

Meta Platforms, Inc. v.Sitnet, LLC

· IPR2024-00530

The PTAB issued a Final Written Decision finding that the patent claims were unpatentable by a preponderance of the evidence. The Board found obviousness over single and combined prior art references (Gage/Mitchell) for original claims, and also determined substitute claims failed both 103 and 101 standards.

patent final · Feb 27, 2024

Meta Platforms, Inc. v.Sitnet, LLC

· IPR2024-00531

The PTAB issued a final decision finding all 20 claims of the patent unpatentable over a combination of Burfeind and Crowley. The Board adopted the petitioner's argument that the challenged claims were obvious, specifically noting that Crowley provided motivation to integrate location-based features into Burfeind's event management system.

patent terminated or settled · Feb 26, 2024

SAP America, Inc. v.ISIX IP LLC

· IPR2024-00615

SAP America and ISIX IP reached a settlement, leading to a joint motion that terminated the inter partes review of patent 6,308,178. The Board granted the termination and ordered the settlement agreement to remain confidential.

patent instituted · Feb 15, 2024

Microsoft Corporation v.Proxense, LLC

· IPR2024-00573

Microsoft Corporation successfully petitioned for IPR against Proxense, LLC's patent (8646042) based on obviousness grounds. The Board granted institution after finding a reasonable likelihood of prevailing on multiple combinations of prior art references.

patent Final Written Decision · Feb 15, 2024

Microsoft Corporation v.Proxense, LLC

· IPR2024-00573

The PTAB found all nine challenged claims unpatentable over the combination of Giobbi ’1573, Giobbi ’1394, and Dua. The Board successfully rejected arguments regarding means-plus-function interpretation, finding key terms like 'PDK' and 'RDC' conveyed sufficient definite structure. This decision represents a significant win for the Petitioner in this IPR proceeding.

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