Patent 8478903
Litigation summary
Past and pending lawsuits — plaintiffs, defendants, jurisdictions, outcomes, and notable rulings.
Active provider: Google · gemini-2.5-flash
PTAB activity (1)
AIA trial proceedings — IPR, PGR, CBM — filed at the USPTO Patent Trial and Appeal Board against this patent. Sourced directly from the PTAB Trial API.
- IPR2026-00095IPRfiled Nov 3, 2025vs. Microsoft CorporationTrial Instituted
Cached for 24 hours. Status strings are sourced verbatim from the PTAB API; the colored badge is our heuristic classification.
Cases on file (4)
Group view →Specific litigation cases in our database that name US patent 8478903. The free-form analysis below may also discuss cases beyond this list.
- 2:24-cv-00886-JRG-RSPEastern District of Texasactive
Defendants: Comcast Cable Communications, LLC d/b/a Xfinity and Comcast Cable Communications Management, LLC d/b/a/ Comcast Technology Solutions
- 2:25-cv-664Eastern District of TexasPending
Defendants: Microsoft Corp.
- 2:24-cv-3951Central District of CaliforniaPending
Defendants: Google LLC
- IPR2026-00095Patent Trial and Appeal Board (PTAB)Pending
Litigation summary
Past and pending lawsuits — plaintiffs, defendants, jurisdictions, outcomes, and notable rulings.
Based on the search results, US patent 8478903 is involved in several litigation cases, including district court cases and PTAB proceedings.
Here is a list of known litigation involving US patent 8478903:
1. District Court Case:
- Plaintiff(s): Sandpiper CDN, LLC
- Defendant(s): Comcast Cable Communications, LLC d/b/a Xfinity; Comcast Cable Communications Management, LLC d/b/a/ Comcast Technology Solutions
- Jurisdiction: Eastern District of Texas
- Case Number: 2:24-cv-00886-JRG-RSP
- Filing Date: November 2024 (Lawsuit was filed in November 2024)
- Current Status: This case is still active, as evidenced by a Petition for Writ of Mandamus filed with the United States Court of Appeals for the Federal Circuit (Case: 26-104 Document: 2-1 Page: 14 Filed: 10/21/2025) relating to this district court case.
2. District Court Case:
- Plaintiff(s): Sandpiper CDN, LLC
- Defendant(s): Microsoft Corp.
- Jurisdiction: Eastern District of Texas
- Case Number: 2:25-cv-664
- Filing Date: Not explicitly stated, but the case number (2:25-cv-00664) suggests it was filed in 2025.
- Current Status: Pending.
3. District Court Case:
- Plaintiff(s): Sandpiper CDN, LLC
- Defendant(s): Google LLC
- Jurisdiction: Central District of California
- Case Number: 2:24-cv-3951
- Filing Date: Not explicitly stated, but the case number (2:24-cv-03951) suggests it was filed in 2024.
- Current Status: Pending.
4. PTAB Case (Inter Partes Review):
- Petitioner: Not explicitly named in the Google Patents snippet, but Unified Patents is mentioned as the source of the data.
- Defendant(s): Not explicitly named.
- Jurisdiction: Patent Trial and Appeal Board (PTAB)
- Case Number: IPR2026-00095
- Filing Date: Not explicitly stated, but the case number (IPR2026-00095) suggests it was filed in 2026.
- Current Status: Pending.
5. PTAB Case (Inter Partes Review):
- Petitioner: Not explicitly named in the Google Patents snippet, but Unified Patents is mentioned as the source of the data.
- Defendant(s): Not explicitly named.
- Jurisdiction: Patent Trial and Appeal Board (PTAB)
- Case Number: IPR2025-00969
- Filing Date: Not explicitly stated, but the case number (IPR2025-00969) suggests it was filed in 2025.
- Current Status: Pending - Instituted.
Generated 5/26/2026, 12:49:21 AM