Patent 6851115

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 (1)

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Specific litigation cases in our database that name US patent 6851115. The free-form analysis below may also discuss cases beyond this list.

  • Google LLC v. IPA Technologies Inc.filed Feb 26, 2019
    IPR2019-00728Patent Trial and Appeal Board (PTAB)Final Written Decision issued; associated with CAFC

    Defendants: IPA Technologies Inc.

Litigation summary

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

✓ Generated

As a patent attorney, I have identified the following known litigation involving US Patent 6851115:

1. Inter Partes Review (IPR) Case: IPR2019-00728

  • Plaintiff(s): Google LLC et al. (Petitioners)
  • Defendant(s): IPA Technologies Inc. (Patent Owner)
  • Jurisdiction: Patent Trial and Appeal Board (PTAB)
  • Case Number: IPR2019-00728
  • Filing Date: February 26, 2019
  • Outcome/Current Status: Final Written Decision issued. The Google Patents entry indicates this case has a "Final Written Decision" and is associated with the Court of Appeals for the Federal Circuit (CAFC).

It's important to note that the Google Patents record also shows several other PTAB cases (IPR2019-00814, IPR2019-00810, IPR2019-00811, IPR2019-00812, IPR2019-00813, IPR2019-00729) and US District Court cases in Delaware District Court (1:18-cv-00001, 1:18-cv-00318), as well as multiple cases in the Court of Appeals for the Federal Circuit (21-1416, 21-1413, 24-1246, 21-1442, 21-1422, 21-1179, 21-1185, 21-1412, 21-1421, 21-1414, 21-1420, 21-1419) related to US6851115B1. These entries indicate ongoing or concluded litigation at various levels. However, detailed information for each of these cases, such as specific plaintiffs, defendants, filing dates, and outcomes, is not immediately available in the provided search snippets beyond their existence and general jurisdiction. The information for IPR2019-00728 is the most comprehensive directly from the search results.

Generated 6/26/2026, 6:45:56 AM