US PTAB Patent Cases
8,574 decisions indexed
Page 150 of 286 · 8,574 total
Airwallex Pty. Ltd. et al. v.--
Airwallex has filed a petition for inter partes review seeking cancellation of all 16 claims of U.S. Patent 11,620,701, alleging obviousness over five prior‑art references. The petition follows multiple infringement lawsuits in Texas that rely on the same patent.
Liberty Energy Inc. et al. v.U.S. Well Services, LLC et al.
Liberty Energy has petitioned the PTAB to institute an IPR against U.S. Well Services’ hydraulic fracturing patent, arguing that claims 1‑14 are obvious over multiple prior‑art references. The petition seeks cancellation of all challenged claims under 35 U.S.C. §103.
Taiwan Semiconductor Manufacturing Company Ltd. v.Marlin Semiconductor Ltd. et al.
TSMC filed an IPR petition challenging U.S. Patent 8,076,735, asserting that all six claims are anticipated or obvious over prior art references Chuang, Lin, and Brask. The petition seeks cancellation of the claims.
SNAP INC. et al. v.Nokia Technologies Oy
Snap and Hisense have filed an IPR petition challenging Nokia’s ’267 video‑compression patent, asserting that the claims are obvious in view of prior art such as Wada and the Karczewicz applications. The petition seeks cancellation of all 36 claims.
MWE Investments, LLC et al. v.Champion Power Equipment, Inc.
Petitioners seek IPR cancellation of all 21 claims of Champion’s dual‑fuel lockout switch patent, arguing obviousness over DuroMax, Elsdon, Parlatore, Hallberg and a lack of structural support for key claim terms.
Samsung Electronics Co., Ltd. et al. v.Radian Memory Systems LLC
Samsung Electronics has filed an IPR petition challenging Radian Memory Systems’ ’995 patent covering flash‑memory address translation. The petition relies on Reiter, SCSI standards, Sinclair‑367 and Yamada to argue obviousness of 23 claims.
Terumo BCT, Inc. v.Haemonetics Corporation
Terumo BCT has filed an IPR petition challenging all 20 claims of Haemonetics’ plasma‑collection patent, asserting anticipation and obviousness over multiple prior‑art references. The petition outlines five grounds based on Lavender and other patents.
Nokia of America Corporation v.SPADA INNOVATIONS, INC.
Nokia of America has filed an inter partes review petition seeking cancellation of all nine claims of SPADA Innovations' ’142 patent, asserting that the claimed PON‑VRF combination is obvious over prior‑art standards and publications.
Tesla, Inc. v.Bulletproof Property Management, LLC
Tesla has filed an IPR petition challenging the vehicle gear‑selection control patent owned by Bulletproof Property Management, alleging obviousness over multiple prior‑art references. The petition lists six §103 grounds covering all 20 claims. The Board has yet to decide whether to institute the review.
Medtronic, Inc. v.Moskowitz Family LLC
Medtronic has filed an IPR petition challenging 16 claims of Moskowitz Family’s spinal fusion patent, asserting that Palmatier anticipates the invention and that combined references render the remaining claims obvious.
Medtronic, Inc. v.Moskowitz Family LLC
Medtronic has filed an IPR petition challenging 16 claims of the ’284 spinal fusion patent owned by Moskowitz Family. The challenger relies on Palmatier, Gordon and Glerum as prior art to argue anticipation and obviousness.
Snap Inc. et al. v.Nokia Technologies Oy
Snap Inc. and Hisense have filed an IPR petition seeking to invalidate 19 claims of Nokia’s video‑coding patent, arguing obviousness over Karczewicz and the MPEG‑1/H.263 combination.
Samsung Electronics, Co., Ltd. et al. v.TVnGo Ltd.
Samsung has filed an IPR petition seeking cancellation of 19 claims of TVnGo’s RE50,399 patent, asserting anticipation and obviousness over multiple interactive‑TV references. The petition requests that all challenged claims be found unpatentable.
Cisco Systems, Inc. v.Damaka, Inc.
Cisco has filed an IPR petition seeking to invalidate 55 claims of Damaka’s ’116 patent covering modular video‑conferencing software. The petition relies on obviousness grounds over prior‑art references such as Abuan, Eisenberg, Beilis, and Guzman.
Samsung Electronics, Co., Ltd. et al. v.TVnGo Ltd.
Samsung has filed an IPR petition seeking cancellation of TVnGo’s RE50328 interactive‑TV patent, asserting anticipation and obviousness over multiple prior‑art references. The petition challenges 19 claims covering overlay graphics and TV‑Internet integration.
Cisco Systems, Inc. v.Damaka, Inc.
Cisco has filed an IPR petition challenging Damaka's U.S. Pat. 11,930,362, which covers modular video‑conferencing software. The petition asserts obviousness over a combination of five prior‑art references and requests the Board to institute a trial and cancel claims 1‑28 and 75.
Cisco Systems, Inc. v.Damaka, Inc.
Cisco has filed an IPR petition seeking to invalidate all 28 claims of Damaka’s U.S. 9,270,744 patent covering modular video‑conferencing software. The petition relies on four prior‑art references to argue obviousness under 35 U.S.C. § 103.
Beatbot Technology (USA) Co. Ltd. et al. v.Zodiac Pool Systems LLC
Beatbot Technology petitions the PTAB to cancel all five claims of Zodiac Pool Systems' autonomous pool‑cleaner patent, asserting obviousness over a suite of prior‑art references and lack of written description for key limitations.
Paragon 28, Inc. v.TREACE MEDICAL CONCEPTS, INC.
Paragon 28, Inc. has filed an IPR petition seeking cancellation of all 30 claims of Treace Medical’s bunion‑correction patent, arguing that the claims are obvious over multiple prior‑art references.
Cisco Systems, Inc. v.Damaka, Inc.
Cisco has filed an IPR petition seeking to invalidate Damaka’s U.S. 9,027,032 patent covering modular video‑conferencing functionality. The petition relies on obviousness over four prior‑art references that disclose similar APIs, function blocks, and authentication mechanisms.
Beatbot Technology (USA) Co. Ltd. et al. v.Zodiac Pool Systems LLC
Beatbot Technology petitions the PTAB to invalidate Zodiac Pool Systems' pool‑cleaner patent, arguing that claims 1‑3 are obvious over a combination of existing underwater cleaning robots and lack written‑description support for key controller features.
Amazon.com Services LLC et al. v.InterDigital VC Holdings, Inc. et al.
Amazon has filed an IPR petition seeking to invalidate 17 claims of InterDigital’s ’606 video‑encoding patent, asserting obviousness over Sekiguchi, VCEG‑AJ21, Xiong and H.264. The petition details extensive claim‑by‑claim analysis linking each limitation to the prior art.
Amazon.com, Inc. et al. v.InterDigital Madison Patent Holdings, SAS et al.
Amazon has filed an IPR petition seeking cancellation of four claims of InterDigital’s HEVC‑related ’877 patent, asserting obviousness over multiple prior‑art references under 35 U.S.C. §103.
Samsung Electronics Co., Ltd. et al. v.Radian Memory Systems LLC
Samsung has filed an IPR petition challenging Radian’s ’657 patent covering flash memory address translation, asserting that the claims are obvious over prior‑art flash controllers and SCSI standards.
Cisco Systems, Inc. v.Golden Eye Technologies LLC
Cisco has filed an IPR petition seeking to invalidate claims 1‑4 and 9‑11 of Golden Eye’s ’556 Wi‑Fi scanning patent, arguing that the claims are obvious over three earlier patents. The petition emphasizes that the patent was allowed despite acknowledging the same prior‑art concepts.
Halozyme, Inc. v.Alteogen Inc.
Halozyme has filed an IPR petition seeking cancellation of all 15 claims of Alteogen’s 2025 ‘638 patent covering a temperature‑shift method for producing recombinant hyaluronidase PH20. The petition relies on obviousness over prior art Wei and Zmuda, with a second ground adding Wei 2013.
Microsoft Corporation v.Qomplx LLC
Microsoft has filed an IPR petition challenging claims 1 and 4 of Qomplx’s 2022 cloud‑telemetry patent, asserting obviousness over prior‑art references describing virtual appliances and cloud agents. The petition seeks institution of the review.
Microsoft Corporation v.Sandpiper CDN, LLC
Microsoft has filed an IPR petition challenging U.S. Patent 10,701,173, which covers CDN cache‑policy methods. The petition alleges obviousness over multiple prior‑art references and seeks cancellation of all fourteen claims.
Google LLC v.Clear Imaging Research LLC
Google petitions the PTAB to invalidate Clear Imaging’s 32‑claim video‑stabilization patent, alleging obviousness over four prior‑art references and arguing claim‑term constructions. The petition seeks cancellation of all claims.
Microsoft Corporation v.Qomplx LLC
Microsoft has filed a petition for inter partes review of Qomplx’s U.S. Patent 12,218,934 covering contextual, risk‑based multi‑factor authentication. The petition asserts that claims 1‑30 are obvious over prior art including the Kirti patent, the Coffin textbook, and Vemulapalli’s virtual‑machine teachings. No objective evidence of non‑obviousness is presented.
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