Industry Sector

Content delivery networks — US PTAB Patent Cases

12 decisions indexed

Page 1 of 1 · 12 total

patent · Dec 29, 2025

Microsoft Corporation v.Sandpiper CDN, LLC

· IPR2026-00190

Microsoft has filed an IPR petition challenging all 50 claims of Sandpiper CDN’s ’053 patent, asserting obviousness over a suite of CDN‑related prior art. The petition seeks institution of the proceeding and cancellation of the claims.

patent · Dec 24, 2025

Microsoft Corporation v.Sandpiper CDN, LLC

· IPR2026-00180

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.

patent · Dec 17, 2025

Microsoft Corporation v.Sandpiper CDN, LLC

· IPR2026-00174

Microsoft has filed an IPR petition challenging Sandpiper CDN’s 9,762,692 patent covering CDN popularity‑based routing and content partitioning, asserting obviousness over Seed and Swildens references.

patent instituted · Sep 5, 2025

Google LLC v.Sandpiper CDN, LLC

· IPR2025-00969

Google filed an authorized response defending the Board’s decision to institute an IPR against Sandpiper CDN’s expired ’903 patent covering CDN alias routing. The petition argues that expiration and a district‑court stay do not create settled expectations for discretionary denial and that the prior art Kenner teaches the claimed elements.

patent terminated or settled · Sep 5, 2025

Google LLC v.Sandpiper CDN, LLC

· IPR2025-00969

Kaifi LLC and Amazon reached a settlement in principle and jointly moved to stay all court deadlines for 45 days to finalize the agreement and file dismissal papers.

patent · Sep 5, 2025

Google LLC v.Sandpiper CDN, LLC

· IPR2025-00969

Google has filed an IPR petition seeking to invalidate 26 claims of Sandpiper CDN’s CDN caching patent. The petition relies on obviousness over Kenner and on combinations with Vetter, Rekimoto, and Boyles, and also challenges claim 28 under §112. The Board has yet to decide whether to institute review.

patent · Jul 5, 2025

Google LLC v.Sandpiper CDN, LLC

· IPR2025-00952

Google has filed an IPR petition seeking cancellation of all 19 claims of Sandpiper's 8,719,886 patent covering video‑stream delivery and targeted advertising. The petition argues the claims are obvious over a combination of prior‑art references (Acharya, Carle, Schein, Fransdonk) and cites favorable institution factors.

patent · Jul 5, 2025

Google LLC v.Sandpiper CDN, LLC

· IPR2025-00846

Google has filed an IPR petition seeking to invalidate Sandpiper CDN’s 8,595,778 patent covering video‑stream authorization, asserting anticipation and obviousness over multiple prior‑art references.

patent · May 21, 2025

Amazon.com, Inc. et al. v.Audio Pod IP, LLC

· IPR2025-01041

Amazon has filed an IPR petition seeking cancellation of all 18 claims of Audio Pod IP’s ’488 patent, alleging obviousness over prior‑art CDN technologies. The petition lists multiple grounds under §103 and requests the Board to institute the trial.

patent · Apr 15, 2025

Google LLC v.Sandpiper CDN, LLC

· IPR2025-00826

Google has filed an IPR petition challenging all 23 claims of Sandpiper CDN’s 2015 CDN patent, alleging obviousness over a combination of five prior‑art references.

patent · Mar 11, 2025

Microsoft Corporation v.Sandpiper CDN, LLC

· IPR2026-00095

Microsoft has filed an IPR petition challenging Sandpiper CDN’s 8,478,903 patent covering content‑delivery networks, asserting that the claims are obvious over Kenner and other prior art.

patent instituted · Jan 5, 2025

Google LLC v.Sandpiper CDN, LLC

· IPR2025-00860

Google LLC initiated an IPR against Sandpiper CDN, LLC's patent (10924573) covering Content Delivery Networks. The Board instituted the case, finding a reasonable likelihood that Google could prevail under 35 U.S.C. § 103 based on obviousness over prior art combinations.

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