US PTAB IP Litigation
2,587 annotated decisions
Page 8 of 108 · 2,587 total
Cox Communications, Inc. v.Entropic Communications LLC
Cox Communications' IPR challenge against Entropic Communications regarding network monitoring technology was denied by the PTAB. The Board found insufficient evidence to establish a reasonable likelihood of prevailing on grounds of obviousness over various prior art references.
Luxottica of America Inc. et al. v.E-Vision Optics, LLC
The PTAB found that the Petitioner successfully demonstrated unpatentability for a majority of challenged claims (Claims 1–9 and 12–19) based on anticipation and obviousness. The Board relied heavily on prior art references, notably Brunton, to establish these findings in the field of smart eyeglasses electronics integration.
Sony Corporation v.Optimum Imaging Technologies LLC
Sony Corporation successfully navigated the PTAB process, leading to the institution of IPR on all 27 challenged claims related to digital camera aberration correction. The Board found a reasonable likelihood that Sony's technology is unpatentable over prior art disclosures from Watanabe and others.
Samsung Electronics Co., Ltd. et al. v.Empire Technology Development LLC
The PTAB denied institution of an IPR challenging five claims related to channel estimation in MIMO systems. The Board found that the petitioner failed to demonstrate a reasonable likelihood of prevailing against obviousness grounds over multiple prior art references.
Cytek Biosciences, Inc. v.Beckman Coulter, Inc. et al.
The PTAB denied institution of a Post-Grant Review (PGR2025-00084) because the petitioner failed to demonstrate that any challenged patent claims were unpatentable.
Meta Platforms, Inc. v.Sitnet, LLC
The PTAB found that claims 12-21 of patent 8249932 were unpatentable under 35 U.S.C. § 103(a). The Petitioner successfully demonstrated obviousness by combining prior art references, specifically Amidon and Walsh, to teach the claimed targeted advertising system in situational networks.
Cisco Systems, Inc. v.Portsmouth Network Corporation
The PTAB rejected Cisco's IPR challenge against the '088 patent, finding no grounds for obviousness over prior art references Dziong and Sathyanath. The Board construed the key term "other connections" narrowly to mean established connections with allocated bandwidth, favoring the Patent Owner's interpretation.
VIZIO, Inc. v.Multimedia Technologies Pte. Ltd.
The PTAB found that multiple claims of the '805 patent were unpatentable based on obviousness (103), primarily over a combination of prior art references Melnychenko and Chen. Key claim constructions favored the Petitioner, particularly regarding 'pre-defined format' as merely an order of data/metadata.
Dyson Technology Limited et al. v.Omachron Intellectual Property Inc. et al.
Dyson Technology Limited successfully convinced the PTAB to institute trial against Omachron Intellectual Property regarding patent 10478030, which covers surface cleaning apparatus. The Board found sufficient evidence of anticipation and obviousness across multiple claims (1-13) based on prior art references including Peter, Neroni, and Butler.
BTL Industries, Inc. v.InMode Ltd.
The PTAB issued a final written decision rejecting all 58 claims of the patent owner's application. The Board found that the Petitioner failed to meet its burden of proof regarding obviousness over combinations of prior art references (Edwards, Mosher, Ingle, Ollivier).
Ericsson Inc. et al. v.XR COMMUNICATIONS LLC
The PTAB institution decision found a reasonable likelihood of prevailing for the Petitioner in its IPR against XR Communications LLC. The challenge focused on whether multi-beam directed signal systems were unpatentable under 35 U.S.C. § 103 using prior art references Agee and Butler.
ResMed Corp. v.Cleveland Medical Devices, Inc.
ResMed Corp. successfully petitioned for institution of its IPR against Cleveland Medical Devices, Inc.'s patent covering CPAP systems. The Board declined discretionary denial, finding that the petitioner adequately demonstrated a reasonable likelihood of prevailing on both 102 and 103 grounds.
Juniper Networks, Inc. v.Monarch Networking Solutions LLC
Juniper Networks challenges Monarch Networking Solutions' '844 patent, arguing that the claimed IPv4/IPv6 transition technology is obvious. The petition asserts that prior art references Li and Li-2 combine to teach the method of constructing an IPv6 address using a port number for multiplexing.
Shopify Inc. v.DKR Consulting LLC
The PTAB denied Shopify Inc.'s request to institute IPR against DKR Consulting LLC's '995 patent. The denial was based on administrative efficiency, as a District Court had already ruled all challenged claims invalid under 35 U.S.C. § 101.
Digital Global Systems, Inc. v.DeepSig, Inc.
Digital Global Systems successfully secured the institution of IPR against DeepSig's patent (11,018,704) over radio signal distortion correction claims, setting up a major technical dispute in cellular communications.
Good Sportsman Marketing, LLC v.--
Good Sportsman Marketing challenged Hangzhou ZH Tech's patent (11736855) in PGR, alleging obviousness and indefiniteness across 19 claims. The Board instituted the petition, finding a likelihood that at least one claim is unpatentable based on prior art combinations.
Samsung Electronics America, Inc. et al. v.Cobblestone Wireless LLC
The PTAB institution decision found a reasonable likelihood of success for Samsung Electronics America, Inc. in challenging Cobblestone Wireless LLC's patent (7924802). The Board preliminarily determined that the preamble 'in a wireless communication channel' is not limiting, allowing the IPR to proceed on grounds of obviousness (103) and anticipation (102).
Teladoc Health, Inc. v.Data Health Partners, Inc.
The PTAB issued a Final Written Decision finding that numerous claims of the patent were unpatentable based on obviousness. The Petitioner successfully demonstrated that various combinations of prior art references rendered the claimed features predictable to one skilled in the art.
Ericsson Inc. et al. v.XR COMMUNICATIONS LLC
The PTAB issued a Final Written Decision rejecting the petitioner's contentions that the patent was unpatentable over Agee or in combination with Butler. The Board found Petitioner failed to meet its burden of proof, specifically regarding how prior art disclosed critical signal processing limitations.
fuboTV Media Inc. et al. v.DISH Technologies L.L.C. et al.
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.
Adobe Inc. v.Jaffe, Jonathan
Adobe Inc. successfully convinced the PTAB to institute an IPR against Jonathan E. Jaffe regarding image integrity patents (6757828). The Board found a reasonable likelihood of prevailing on obviousness over prior art, specifically Glass et al., leading to trial preparation.
Taiwan Semiconductor Manufacturing Company Limited v.Marlin Semiconductor Ltd. et al.
The Patent Trial and Appeal Board granted institution for multiple IPRs involving Taiwan Semiconductor Manufacturing Company Limited against Marlin Semiconductor Ltd., allowing the merits phase to proceed.
Comcast Corporation et al. v.Entropic Communications LLC
Comcast Cable Communications, LLC filed a Petition challenging the validity of Entropic Communications' patent (US 11399206) in an IPR proceeding. The petitioner argues that the claimed wideband receiver methods are anticipated or rendered obvious by various prior art combinations.
BESTWAY (USA), INC. et al. v.Intex Marketing Ltd. et al.
Bestway challenged Intex's patent, but the PTAB denied institution because Intex had statutorily disclaimed all claims. The Board also declined to enter an adverse judgment against Intex.