Industry Sector

Computer networking — US PTAB Patent Cases

108 decisions indexed

Page 1 of 4 · 108 total

patent · Mar 27, 2026

Cisco Systems, Inc. v.--

· IPR2026-00320

Cisco Systems has filed a petition for inter partes review of U.S. Patent 8,780,887, asserting that its ten claims are obvious over the Pankratov prior‑art reference. The petition seeks institution of the IPR and cancellation of the challenged claims.

patent · Mar 27, 2026

Cisco Systems, Inc. v.--

· IPR2026-00322

Cisco has filed a petition for inter partes review of U.S. Patent 10,020,961, asserting that all 13 claims are obvious over the Ye reference. The petition seeks institution of the IPR and cancellation of the claims.

patent · Dec 17, 2025

Microsoft Corporation v.Sandpiper CDN, LLC

· IPR2026-00174

Microsoft seeks Director Review of a PTAB institution decision that ordered review of an expired content‑delivery patent owned by Sandpiper CDN. The petition argues the Board misapplied settled‑expectations doctrine and misread the district‑court record, making the decision an outlier.

patent all challenged claims unpatentable · Dec 11, 2025

Meta Platforms, Inc. v.SitNet, LLC

· IPR2026-00110

Meta Platforms successfully challenged SitNet’s ’682 patent in an IPR, resulting in all 20 claims being found unpatentable for obviousness over Burfeind and Crowley. The patent owner did not respond, leaving the petition unopposed.

patent all challenged claims unpatentable · Dec 11, 2025

Meta Platforms, Inc. v.SitNet, LLC

· IPR2026-00113

Meta Platforms successfully challenged SitNet’s ’682 patent, leading the PTAB to find all 20 claims unpatentable as obvious over prior‑art event‑organization and location‑based systems.

patent all challenged claims unpatentable · Dec 11, 2025

Meta Platforms, Inc. v.SitNet, LLC

· IPR2026-00111

Meta Platforms successfully challenged SitNet’s ’682 patent covering situational networks. The PTAB found all 20 claims unpatentable as obvious over prior art references Burfeind and Crowley. The patent owner did not respond, leaving the petitioner’s arguments unopposed.

patent · Nov 4, 2025

American Airlines, Inc. et al. v.Intellectual Ventures I LLC

· IPR2025-00786

American Airlines and Southwest Airlines have filed an IPR petition seeking to invalidate key claims of Intellectual Ventures' virtual network patent, arguing obviousness over a combination of prior‑art references. The petition also challenges any discretionary denial by the Board.

patent · Oct 13, 2025

Fortinet, Inc. v.Netskope, Inc.

· IPR2026-00042

Fortinet has filed an IPR petition seeking cancellation of all 20 claims of Netskope’s U.S. Patent 8,543,710, alleging that the claims are anticipated or obvious over Roskind, Gleichauf, and Short prior art and lack proper priority support.

patent all challenged claims unpatentable · Oct 11, 2025

Meta Platforms, Inc. v.SitNet, LLC

· IPR2026-00112

Meta Platforms successfully challenged all twenty claims of SitNet’s ’682 patent covering a situational network and roll‑call system. The Board held the claims obvious over the Burfeind and Crowley references under 35 U.S.C. §103. No claim construction was required.

patent · Oct 11, 2025

Meta Platforms, Inc. v.SitNet, LLC

· IPR2026-00112

Meta Platforms petitions the PTAB to invalidate SitNet’s ’463 patent covering situational networks, asserting that all 12 claims are obvious over prior‑art combinations of location‑based social networking technologies.

patent · Oct 10, 2025

Fortinet, Inc. v.Netskope, Inc.

· IPR2026-00041

Fortinet has filed an IPR petition challenging all 35 claims of Netskope’s ’282 patent covering dynamic firewall rule updates, asserting anticipation and obviousness over the Coss patent and the Ke publication.

patent · Oct 10, 2025

Fortinet, Inc. v.Netskope, Inc.

· IPR2026-00040

Fortinet has filed an IPR petition against Netskope’s ’336 patent covering network‑access redirection. The challenger contends that all 20 claims are anticipated or obvious over Subbiah and, for dependent claims, over Hinton and Crandell. Fortinet seeks institution and cancellation of the claims.

patent · Oct 4, 2025

Cisco Systems, Inc. v.QPRIVACY USA LLC

· IPR2025-00837

Cisco has filed an IPR petition seeking to invalidate QPrivacy’s U.S. 11,106,824 patent, asserting that all 20 claims are obvious over prior‑art IDS patents (Burns, Yang, and Wittenberg). The petition also argues that discretionary denial is inappropriate.

patent · Sep 5, 2025

Google LLC v.Sandpiper CDN, LLC

· IPR2025-00969

Google has filed a Request for Director Review challenging the PTAB’s decision to institute inter partes review of its expired content‑delivery patent. The petitioner argues the Board misapplied settled‑expectations doctrine and misread the prior art. The request seeks reversal of the institution.

patent · Sep 5, 2025

American Airlines, Inc. et al. v.Intellectual Ventures I LLC

· IPR2025-00987

American Airlines and Southwest Airlines have petitioned the PTAB to invalidate all 37 claims of Intellectual Ventures' ’722 patent, asserting obviousness over a combination of five prior‑art references covering real‑time data updates and routing networks.

patent · Sep 1, 2025

Cisco Systems, Inc. v.WSOU Investments LLC d/b/a Brazos Licensing and Development

· IPR2025-00429

Cisco has filed an IPR petition challenging claims 1 and 17 of WSOU’s U.S. 9,450,884 patent, asserting obviousness over multiple prior‑art references. The petition also argues that discretionary denial is inappropriate and requests institution of the review.

patent · Aug 28, 2025

Ciena Corporation v.K.Mizra LLC

· IPR2025-01364

Ciena has filed a petition for inter partes review of U.S. Patent 10,735,320, asserting that all 20 claims are obvious over prior‑art MPLS technologies disclosed in Murphy, Taguchi, and Booth. The petition seeks institution of the IPR and cancellation of the claims.

patent · Aug 10, 2025

Fortinet, Inc. v.Netskope, Inc.

· IPR2026-00031

Fortinet has filed an IPR petition challenging Netskope’s U.S. Patent 8,635,697 covering network‑based malware detection and OS fingerprinting. The petition asserts obviousness under 35 U.S.C. §103 by combining three prior‑art references. The case is pending institution.

patent · Jul 18, 2025

Reolink Innovation Inc. et al. v.--

· IPR2025-01327

Reolink Innovation filed an IPR petition challenging all 19 claims of its ’655 peer‑to‑peer searching system patent, alleging anticipation and obviousness based on five prior‑art publications. The petition enumerates eight grounds covering §§102 and 103, mapping each claim to the cited references.

patent · Jul 14, 2025

Dell Technologies Inc. et al. v.Cloud Byte LLC

· IPR2025-01284

Dell Technologies and Dell Inc. have filed an IPR petition seeking to invalidate all 27 claims of Cloud Byte’s ’249 patent covering packet‑forwarding nodes. The petition relies on the Shimizu patent application and the BGP‑4 standard (RFC‑4271) as prior art to argue obviousness.

patent · Jul 14, 2025

Dell Technologies Inc. et al. v.Cloud Byte LLC

· IPR2025-01285

Dell Technologies has filed an IPR petition seeking to invalidate all 20 claims of Cloud Byte’s ’177 patent covering network flow tracing. The petition relies on obviousness over Rijhsinghani and combinations with RFC‑5474, Lean, and a networking textbook.

patent · Jul 10, 2025

Fortinet, Inc. v.Netskope, Inc.

· IPR2026-00025

Fortinet has filed an IPR petition seeking cancellation of Netskope's U.S. Patent 8,117,639 covering network access control. The petition relies on Richmond, Wood, and Teraslinna as anticipatory and obviousness prior art.

patent terminated or settled · Jul 8, 2025

Microsoft Corporation v.Dialect, LLC

· IPR2025-01351

Microsoft and Dialect settled their IPR dispute over patent 7,398,209 before trial. The Board granted a joint motion to terminate, keeping the settlement agreement confidential.

patent · Jul 8, 2025

Microsoft Corporation v.Dialect, LLC

· IPR2025-01351

Microsoft and Dialect have jointly moved to keep their settlement agreement confidential, invoking statutory provisions for business‑confidential information.

patent all challenged claims unpatentable · Jun 13, 2025

Google LLC v.Valtrus Innovations Limited et al.

· IPR2025-01157

The PTAB held that Google proved all 21 claims of Valtrus’s ’454 patent are obvious over Colby, Eilert, and Jindal, rendering the entire patent unpatentable.

patent · Jun 11, 2025

Meta Platforms, Inc. v.SitNet, LLC

· IPR2026-00101

Meta Platforms seeks cancellation of all twenty claims of SitNet’s ’454 patent, asserting obviousness over Amidon and the Wong‑Gogic combination. The petition includes a supporting expert declaration and argues discretionary factors favor institution.

patent all challenged claims unpatentable · Jun 11, 2025

Meta Platforms, Inc. v.SitNet, LLC

· IPR2026-00100

Meta Platforms successfully challenged SitNet’s ’682 patent covering situational networks. The PTAB found all twenty claims unpatentable as obvious over prior art. The decision finalizes the IPR with a sweeping cancellation.

patent all challenged claims unpatentable · Jun 11, 2025

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 · Jun 11, 2025

Meta Platforms, Inc. v.SitNet, LLC

· IPR2026-00100

Meta Platforms petitions the PTAB to invalidate all 16 claims of SitNet’s ’345 patent, arguing they are obvious over Gage, Mitchell, Shida, and Sinha. The petition emphasizes strong discretionary factors favoring institution.

patent mixed - some claims cancelled, some upheld · Jun 11, 2025

Meta Platforms, Inc. v.SitNet, LLC

· IPR2026-00100

Meta Platforms successfully challenged SitNet’s ’454 patent, leading the PTAB to find claims 1‑9 and 20 unpatentable and cancel claims 10‑19.

Arctic Invent — IP Strategy

Dealing with a patent challenge?

Whether it's a Section 3(d) rejection, a post-grant opposition, or a FRAND dispute, Arctic's patent litigation team has handled it. Get a strategy call.

Talk to our patent team →