Patent 8411557

Litigation summary

Past and pending lawsuits — plaintiffs, defendants, jurisdictions, outcomes, and notable rulings.

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No PTAB proceedings on file. This patent has not been challenged through Inter Partes Review, Post-Grant Review, or Covered Business Method review at the USPTO. The absence is itself a signal — well-asserted patents eventually attract IPRs.

Cases on file (2)

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Specific litigation cases in our database that name US patent 8411557. The free-form analysis below may also discuss cases beyond this list.

Litigation summary

Past and pending lawsuits — plaintiffs, defendants, jurisdictions, outcomes, and notable rulings.

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Known litigation involving US patent 8411557 includes:

  1. Case Name: Optis Wireless Technology, LLC, et al. v. [Apple Inc.](/litigations/by-plaintiff/Apple%20Inc.)

    • Plaintiff(s): Optis Wireless Technology, LLC, Optis Cellular Technology, LLC, PanOptis Patent Management, LLC, Unwired Planet International, Ltd., and Unwired Planet, LLC (collectively, "Optis")
    • Defendant(s): Apple Inc.
    • Jurisdiction: U.S. District Court for the Eastern District of Texas (initially), and U.S. Court of Appeals for the Federal Circuit (on appeal)
    • Case Number: 2:19-cv-00066-JRG (District Court); 22-1904, 22-1925 (Federal Circuit)
    • Filing Date: Optis filed the complaint in the U.S. District Court for the Eastern District of Texas in 2019. The appeal to the Federal Circuit (Case No. 22-1925) was filed on June 23, 2022.
    • Outcome/Current Status: This case has undergone multiple significant developments:
      • Initial District Court Trial (2020): A jury in the Eastern District of Texas found Apple infringed the asserted patents, including 8411557, and awarded Optis $506 million in damages.
      • New Damages Trial Ordered (April 2021): The District Court granted a new trial on damages, finding that the initial jury's royalty award might not have been consistent with Optis's obligation to license the patents on Fair, Reasonable, and Non-Discriminatory (FRAND) terms.
      • Second District Court Trial (2021): A second jury awarded Optis $300 million in lump-sum damages for past and future sales.
      • Federal Circuit Appeal (Decided June 16, 2025): The U.S. Court of Appeals for the Federal Circuit (Case No. 22-1925) vacated both the infringement and the second damages judgments. The Federal Circuit remanded the case back to the Eastern District of Texas for a new trial on infringement and damages. This decision was partly due to the Federal Circuit finding that the jury verdict form, which asked about infringement of "any of" the five asserted patents (including 8411557), violated Apple's right to a unanimous jury verdict on each legal claim. Apple's cross-appeal was dismissed.
      • Current Status (as of April 26, 2026): The case is currently remanded for a new trial on infringement and damages in the Eastern District of Texas.

  2. Case Name: IPR2020-00466 (Inter Partes Review challenging US8411557)

    • Plaintiff(s) / Petitioner: Apple Inc.
    • Defendant(s) / Patent Owner: Optis Wireless Technology, LLC
    • Jurisdiction: Patent Trial and Appeal Board (PTAB)
    • Case Number: IPR2020-00466
    • Filing Date: February 28, 2020
    • Outcome/Current Status: The institution petition for this Inter Partes Review was denied on September 15, 2020, thereby affirming the validity of US8411557.

Generated 5/29/2026, 8:55:05 PM