Judge Profile

THU A. Dang

104 IP cases indexed. Covers patent matters.

Cases Presided Over

104 cases indexed | Page 1 of 4

patent mixed - some claims cancelled, some upheld

fuboTV Media Inc. v.DISH Technologies L.L.C. et al.

· IPR2024-00902

The PTAB held 16 of the 25 challenged claims of DISH’s adaptive‑rate streaming patent unpatentable as obvious over Ogdon and Allen, with two additional claims invalidated over Ogdon, Allen, and SMIL 2.0. The remaining nine claims were upheld.

patent denied

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 denied

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

· IPR2024-01133

The PTAB denied Optronic Sciences' request to reconsider the institution decision in IPR2024‑01133, finding no extraordinary circumstances despite recent guidance changes. The Board applied the Chief Judge’s and Director’s memoranda and upheld the original institution.

patent terminated or settled

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

· IPR2024-01131

BOE Technology Group and Optronic Sciences settled their IPR dispute over U.S. Patent 7,226,801 B2. The Board terminated the proceeding by joint motion, citing good cause and confidentiality considerations.

patent denied

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

· IPR2024-01132

The PTAB denied Optronic Sciences LLC’s request to file a motion for reconsideration of the institution decision in IPR2024-01132. The Board found no extraordinary circumstances and applied the new Director’s Memorandum, leaving the institution in place.

patent denied

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

· IPR2024-01315

The PTAB denied Optronic Sciences' request to file a motion for reconsideration of the institution decision in IPR2024-01315. The Board found no extraordinary circumstances and noted that the deadline for Director Review had passed. The institution of the IPR therefore remains in effect.

patent instituted

Webgroup Czech Republic, a.s. et al. v.DISH Technologies L.L.C. et al.

· IPR2025-00347

The PTAB instituted inter partes review of DISH Technologies' adaptive‑bitrate streaming patent (claims 1‑16) and granted joinder to Webgroup Czech Republic and NKL Associates, aligning the case with the earlier fuboTV/MasterClass IPR.

patent all challenged claims unpatentable

Meta Platforms, Inc. v.SitNet, LLC

· IPR2026-00101

The PTAB held that Meta Platforms' petition proved all 20 claims of SitNet’s ’682 patent obvious over Burfeind and Crowley, rendering the claims unpatentable.

patent final

Juniper Networks, Inc. v.Monarch Networking Solutions LLC

· IPR2024-00485

The PTAB issued a final decision finding all 10 claims unpatentable based on obviousness over prior art references Li and Wu. The Board adopted the Petitioner's definition of 'domain,' which was crucial to establishing the combination of teachings from both sources.

patent final

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 Final Written Decision

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

Juniper Networks, Inc. v.Monarch Networking Solutions LLC

· IPR2024-00561

The PTAB issued a Final Written Decision finding that claims 1 and 6 of the patent were unpatentable over prior art references Wainner and Bocci. The Board agreed with the Petitioner's argument that combining these references rendered the claimed method obvious, particularly regarding shared link functionality in pseudo-wires.

patent Final Written Decision

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.

patent final

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 final

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 Written Decision

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 final

fuboTV Media Inc. et al. v.DISH Technologies L.L.C. et al.

· IPR2024-00917

The PTAB found all 18 challenged claims unpatentable over prior art combinations, primarily Leaning. The Board determined that Leaning discloses key adaptive bitrate streaming features, including methods for segmenting video and implementing rate switching based on network performance factors.

patent final

fuboTV Media Inc. et al. v.DISH Technologies L.L.C. et al.

· IPR2024-00918

Petitioner successfully demonstrated that all 16 claims of the '564 patent are unpatentable over prior art, primarily Leaning. The Board construed 'continuous playback' to mean no interruption occurs between files during a rate shift, finding this limitation was taught by Leaning.

patent final

fuboTV Media Inc. et al. v.DISH Technologies L.L.C. et al.

· IPR2024-00919

The PTAB found that all 21 challenged claims of DISH Technologies L.L.C. were unpatentable by a preponderance of the evidence. The Board determined that prior art, specifically Leaning and Gamble, taught or rendered the claimed Adaptive Bitrate Streaming (ABR) technology obvious.

patent final

Aylo Freesites Ltd et al. v.DISH Technologies L.L.C. et al.

· IPR2024-00940

The PTAB found that claims 1-11 of the patent were unpatentable over prior art references (Leaning, Klemets, Gamble) based on obviousness under 35 U.S.C. § 103. The Board adopted a limiting construction for 'to achieve continuous presentation,' requiring uninterrupted playback across quality shifts.

patent Final Written Decision

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 Final Written Decision

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

· IPR2024-01132

The Board found all seven challenged claims unpatentable, rejecting the patent owner's narrow construction of 'passivation layer.' The petitioner successfully demonstrated that combining prior art references (Anzai and Yamazaki) taught or rendered obvious the claimed invention in OLED devices.

patent Final Written Decision

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

Kia Corporation et al. v.Emerging Automotive LLC

· IPR2024-01167

The PTAB found that the majority of claims (1-5 and 7-21) in the '659 patent were unpatentable based on combinations of prior art references. The Board specifically agreed with Petitioner's argument that Kleve combined with Hatton rendered independent claim 1 obvious, finding a reasonable expectation of success for POSITA.

patent final

LENOVO (UNITED STATES) INC. et al. v.Intellectual Ventures I LLC et al.

· IPR2024-01225

The PTAB found that claims 1 and 3-7 of the patent were unpatentable over prior art references (Shenai, Georgiou, etc.), while claims 8-12 survived. The key finding was that the claim language did not require global-asynchrony, supporting the Petitioner’s interpretation.

patent final

Genius Sports Ltd. v.SportsCastr Inc.

· IPR2024-01305

The PTAB found claims 1-7 unpatentable over a combination of Ellis, Spivey, and Herzog, concluding that the claimed live video streaming system was obvious to a POSA. The Board specifically held that Spivey's topic queues satisfy the definition of an 'event socket.'

patent final

Genius Sports Ltd. v.SportsCastr Inc.

· IPR2024-01307

The PTAB found that claims 19-25 and 27-30 of the '687 patent were unpatentable over a combination of Ellis and Spivey, based on obviousness (Ground 1). The Board rejected an alternative ground involving Herzog, finding no motivation to combine those references.

patent final

Genius Sports Ltd. v.SportsCastr Inc.

· IPR2024-01308

The PTAB issued a Final Written Decision finding all nine challenged claims unpatentable over combinations of prior art references (Ellis, Spivey, Herzog). The Board relied heavily on the combination of Ellis and Spivey to establish obviousness for Claim 1, particularly regarding low-latency data delivery via uniquely addressable event sockets.

patent final

Genius Sports Ltd. v.SportsCastr Inc.

· IPR2024-01309

The PTAB found that the challenged claims were unpatentable by a preponderance of evidence, rejecting the Patent Owner's arguments against obviousness. The decision centered on whether prior art references (Ellis and Spivey) combined could teach all limitations of the claimed system for live event broadcasting.

patent Final Written Decision

Genius Sports Ltd. v.SportsCastr Inc.

· IPR2024-01310

The PTAB issued a Final Written Decision finding all 15 challenged claims unpatentable as obvious over combinations of prior art. Petitioner successfully demonstrated that combining Ellis and Spivey taught an 'event socket' to improve latency, while other grounds were also met by the combination of Ellis, Spivey, and Herzog.

Arctic Invent — IP Strategy

Facing a similar IP matter?

Arctic Invent is a specialist IP firm with deep litigation expertise across India, EU, US, and UK. Our team uses data-driven strategy to build stronger cases.

Consult our team →