Patent 9448367
Litigation summary
Past and pending lawsuits — plaintiffs, defendants, jurisdictions, outcomes, and notable rulings.
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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.
- IPR2026-00019IPRfiled Oct 10, 2025vs. Accelight Technologies, Inc. et al.Discretionary Denial
Cached for 24 hours. Status strings are sourced verbatim from the PTAB API; the colored badge is our heuristic classification.
Cases on file (2)
Group view →Specific litigation cases in our database that name US patent 9448367. The free-form analysis below may also discuss cases beyond this list.
- Eoptolink Technology USA Inc. v. Applied Optoelectronics, Inc.filed Oct 10, 2025IPR2026-00019Patent Trial and Appeal Board (PTAB)Not Instituted - Procedural
Defendants: Applied Optoelectronics, Inc.
Other patents asserted: 9448367B2
- 5:24-cv-08165-NWUnited States District Court, Northern District of California, San Jose DivisionStayed
Defendants: Eoptolink Technology USA Inc.
Other patents asserted: 9448367B2
Litigation summary
Past and pending lawsuits — plaintiffs, defendants, jurisdictions, outcomes, and notable rulings.
Known litigation involving US patent 9448367 as of April 26, 2026, is detailed below:
1. Inter Partes Review (IPR) Proceeding
- Plaintiff(s) (Petitioner): Eoptolink Technology USA Inc.
- Defendant(s) (Patent Owner): Applied Optoelectronics, Inc. ("AOI")
- Jurisdiction: Patent Trial and Appeal Board (PTAB)
- Case Number: IPR2026-00019
- Filing Date: October 10, 2025
- Outcome or Current Status: Not Instituted - Procedural. The PTAB decided not to initiate a full inter partes review.
2. US District Court Case
- Plaintiff(s): Applied Optoelectronics, Inc. ("AOI")
- Defendant(s): Eoptolink Technology USA Inc. ("Eoptolink")
- Jurisdiction: United States District Court, Northern District of California, San Jose Division
- Case Number: 5:24-cv-08165-NW
- Filing Date: The case number indicates a 2024 filing year. The exact filing date is not explicitly provided in the available snippets, but document 46 was filed on January 13, 2026.
- Outcome or Current Status: The case is currently stayed. A joint administrative motion to stay pending IPR institution decisions (including IPR2026-00019 concerning US9448367B2) was filed by both parties and granted by the court. US patent 9448367B2 is one of six patents asserted by AOI against Eoptolink in this action.
Generated 5/25/2026, 12:48:48 PM