Networking — US PTAB Patent Cases
53 decisions indexed
Page 2 of 2 · 53 total
Cisco Systems, Inc. v.Portsmouth Network Corporation
Cisco Systems challenges Portsmouth Network Corporation's patent (8014394) in a PTAB Petition, arguing that the claims are obvious under 35 U.S.C. § 103. The petitioner asserts that combining various prior art references renders nearly all challenged claims unpatentable.
Cisco Systems, Inc. v.Portsmouth Network Corporation
Cisco Systems successfully petitioned to challenge Portsmouth Network Corporation's patent (8014394) in an IPR proceeding, leading the PTAB to institute the case. The Board found a reasonable likelihood of prevailing for several claims based on obviousness over prior art references Weyman and Li.
Cisco Systems, Inc. v.Portsmouth Network Corporation
The PTAB found the patent claims unpatentable under 35 U.S.C. § 103(a) based on various combinations of prior art references. The Petitioner successfully demonstrated that combining existing network technologies taught or rendered obvious the claimed limitations, particularly in multicast routing and packet processing.
CISCO SYSTEMS, INC. et al. v.InfoExpress Inc.
CISCO Systems requested Director Review in IPR2024-00677 concerning patent 8,578,444 owned by InfoExpress; the Board will decide whether to grant the review.
Juniper Networks, Inc. v.Portsmouth Network Corporation
The PTAB issued a Final Written Decision finding several claims of the '986 patent unpatentable under 35 U.S.C. § 103(a). The Board concluded that the combination of prior art references, including Gai and an IEEE publication, taught the full scope of the claimed network failure recovery method.
Meta Platforms, Inc. v.Sitnet, LLC
Meta Platforms successfully secured institution in its IPR challenge against Sitnet, LLC's '454 patent. The Board found sufficient support for obviousness over Amidon and Wong/Gogic, advancing the dispute to trial.
Meta Platforms, Inc. v.Sitnet, LLC
The PTAB found that Claims 1-9 and 20 are unpatentable over prior art references (Amidon, Wong, Gogic) based on obviousness. Additionally, the Board granted an Adverse Judgment to cancel claims 10-19.
CISCO SYSTEMS, INC. v.UMBRA TECHNOLOGIES LTD.
Umbra has filed a Director Review request challenging the PTAB’s claim construction for an “end-to-end tunnel” and seeking to vacate the institution of review for Cisco’s IPR. The Board had instituted the IPR based on an obviousness finding over Hankins and Munger references.
CISCO SYSTEMS, INC. v.UMBRA TECHNOLOGIES LTD.
The PTAB issued a Final Written Decision finding that the Petitioner failed to prove unpatentability for claims 15-20 of the '595 patent. Claims 1-14 were mooted by disclaimer, resulting in no challenged claims being found unpatentable.
CISCO SYSTEMS, INC. v.WSOU Investments LLC d/b/a Brazos Licensing and Development
Cisco and WSOU Investments settled their IPR dispute over patent 8,441,721 before trial. The Board dismissed the petition on the parties' joint motion to terminate.
Arista Networks, Inc. v.Orckit Corporation
Arista Networks and Orckit Corporation filed a joint request to keep their settlement agreement confidential and to terminate the pending IPR over patent 10,652,111.
Arista Networks, Inc. v.Orckit Corporation
Arista Networks and Orckit Corporation settled their IPR dispute over U.S. Patent 8,830,821, leading the PTAB to terminate the proceeding before trial. The settlement agreement is treated as confidential business information.
Arista Networks, Inc. v.Orckit Corporation
Arista Networks and Orckit Corporation have reached a settlement that resolves their dispute over U.S. Patent 8,830,821, prompting a joint motion to terminate the pending inter partes review. The Board has not yet decided any merits, and the parties seek termination for judicial economy.
Arista Networks, Inc. v.Orckit Corporation
Arista Networks challenges Orckit Corporation's patent (10652111) in an IPR, asserting that the claimed Deep Packet Inspection functionality within a Software Defined Networking controller is obvious.
Arista Networks, Inc. v.Orckit Corporation
Arista Networks has filed an IPR petition challenging Orckit Corporation's patent (8,830,821) on grounds of obviousness (§103). The challenge centers on the combination of Doshi’s MPLS path selection with reoptimization techniques from prior art like Guichard and Huang.
Arista Networks, Inc. v.Orckit Corporation
Arista Networks has filed a petition challenging U.S. Patent No. 7,545,740 held by Orckit Corporation, asserting obviousness under 35 U.S.C. § 103. The petitioner argues that the claimed bi-directional link aggregation and hash-based selection mechanisms were already known in prior art references like Bruckman, Basso, and Holdsworth. This challenge targets core networking technology used for load balancing.
Arista Networks, Inc. v.Orckit Corporation
Arista Networks successfully secured the institution of Inter Partes Review against Orckit Corporation's patent (10652111). The Board found a reasonable likelihood that Arista could prove obviousness based on prior art related to Software Defined Networking and Deep Packet Inspection.
Reolink Innovation Inc. et al. v.Throughtek Co., Ltd.
The PTAB institution decision found sufficient evidence of obviousness under 35 U.S.C. § 103 for multiple claims related to peer-to-peer connection establishment. The Petitioner successfully demonstrated that combining prior art references, such as the Lorex Guide and Kim, taught all limitations of several claimed features. This outcome significantly advances the challenge against the patent's validity in this technology area.
Cisco Systems Inc. v.Portsmouth Network Corporation
The PTAB found that a large group of claims (15) were unpatentable over the prior art reference Gai under 35 U.S.C. § 103(a). The Board relied on Petitioner's '1B' theory, which successfully demonstrated obviousness by showing Gai disclosed all limitations of the claimed network topology and dummy traffic function. Claims 11, 12, 23, and 24 survived the challenge.
CISCO SYSTEMS, INC. v.UMBRA TECHNOLOGIES LTD.
The Board issued a Final Written Decision finding all seven challenged claims unpatentable based on obviousness over the prior art reference Agarwala. The decision adopted Petitioner's construction that 'data beacons' was merely an intended use, and found that Agarwala disclosed every structural limitation of the claims through a combination of disclosures.
Cisco Systems, Inc. v.Portsmouth Network Corporation
Cisco Systems challenges Portsmouth Network Corporation's patent via IPR, arguing that the claimed ring topology flow allocation methods are obvious. The petitioner asserts that combining prior art references like Kovvali and Kalman renders the claims unpatentable under 35 U.S.C. § 103.
Juniper Networks, Inc. v.Monarch Networking Solutions LLC
Monarch’s preliminary response opposes Juniper’s IPR petition on U.S. Patent 8,451,844, arguing that the cited prior art does not disclose separate IPv4/IPv6 domains and that Li‑2 is not prior art. The owner seeks denial of institution.
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.
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