Patent 6775664

Litigation summary

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

Active provider: Google · gemini-2.5-flash

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 (3)

Group view →

Specific litigation cases in our database that name US patent 6775664. The free-form analysis below may also discuss cases beyond this list.

  • IP Engine Inc v. Microsoft Corp.filed Jan 31, 2013
    1:13-cv-00688New York Southern District Court

    Defendants: Microsoft Corp.

  • I/P Engine, Inc. v. AOL, Inc. et al.filed Sep 15, 2011
    2:2011cv00512U.S. District Court for the Eastern District of VirginiaReversed on appeal

    Defendants: AOL, Inc., Google, Inc., IAC Search & Media, Inc., and 2 others

    Other patents asserted: 6314420

  • Untitled case
    14-1233Court of Appeals for the Federal Circuitoverturned on appeal

Litigation summary

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

✓ Generated

Known litigation involving US patent 6775664 includes the following cases:

  1. I/P Engine, Inc. v. AOL Inc. et al.

    • Plaintiff(s): I/P Engine, Inc.
    • Defendant(s): AOL Inc., Google Inc., IAC Search & Media, Inc., Gannett Company, Inc., Target Corporation
    • Jurisdiction: Virginia Eastern District Court
    • Case Number: 2:11-cv-00512
    • Filing Date: September 15, 2011
    • Outcome/Current Status: The case was closed on March 24, 2015. The initial judgment of patent infringement, which formed the basis for orders on supplemental damages, ongoing royalties, colorable differences, and interest, was overturned on appeal. The District Court's orders and judgments on supplemental damages, ongoing royalties, colorable differences, and interest were formally vacated on January 29, 2016, and again on October 30, 2015, and November 3, 2015. Earlier, a verdict had resulted in damages awarded to I/P Engine, Inc., including $15,800,000 from Google, Inc. and $7,943,000 from AOL Inc..

  2. I/P Engine, Inc. v. AOL Inc. et al. (Federal Circuit Appeal)

    • Plaintiff(s) / Appellant(s): I/P Engine, Inc. (Plaintiff-Cross Appellant)
    • Defendant(s) / Appellee(s): AOL Inc., Google Inc., IAC Search & Media, Inc., Gannett Company, Inc., Target Corporation (Defendants-Appellants)
    • Jurisdiction: Court of Appeals for the Federal Circuit
    • Case Number: 13-1307
    • Filing Date: The case number indicates a 2013 filing year.
    • Outcome/Current Status: The prior judgment of patent infringement by the District Court was overturned on appeal.

  3. I/P Engine, Inc. v. AOL Inc. et al. (Federal Circuit Appeal)

    • Plaintiff(s) / Appellant(s): I/P Engine, Inc. (Plaintiff-Cross Appellant)
    • Defendant(s) / Appellee(s): AOL Inc., Google Inc., IAC Search & Media, Inc., Gannett Company, Inc., Target Corporation (Defendants-Appellants)
    • Jurisdiction: Court of Appeals for the Federal Circuit
    • Case Number: 13-1313
    • Filing Date: The case number indicates a 2013 filing year.
    • Outcome/Current Status: The prior judgment of patent infringement by the District Court was overturned on appeal.

  4. I/P Engine, Inc. v. AOL Inc. et al. (Federal Circuit Appeal)

    • Plaintiff(s) / Appellant(s): Not explicitly detailed in the provided snippets, but likely related to the underlying district court case 2:11-cv-00512.
    • Defendant(s) / Appellee(s): Not explicitly detailed in the provided snippets, but likely related to the underlying district court case 2:11-cv-00512.
    • Jurisdiction: Court of Appeals for the Federal Circuit
    • Case Number: 14-1233
    • Filing Date: The case number indicates a 2014 filing year.
    • Outcome/Current Status: The prior judgment of patent infringement by the District Court was overturned on appeal.

  5. I/P Engine, Inc. v. AOL Inc. et al. (Federal Circuit Appeal)

    • Plaintiff(s) / Appellant(s): Not explicitly detailed in the provided snippets, but likely related to the underlying district court case 2:11-cv-00512.
    • Defendant(s) / Appellee(s): Not explicitly detailed in the provided snippets, but likely related to the underlying district court case 2:11-cv-00512.
    • Jurisdiction: Court of Appeals for the Federal Circuit
    • Case Number: 14-1289
    • Filing Date: The case number indicates a 2014 filing year.
    • Outcome/Current Status: The prior judgment of patent infringement by the District Court was overturned on appeal.

  6. IP Engine Inc v. Microsoft Corp.

    • Plaintiff(s): IP Engine Inc
    • Defendant(s): Microsoft Corp.
    • Jurisdiction: New York Southern District Court
    • Case Number: 1:13-cv-00688
    • Filing Date: January 31, 2013
    • Outcome/Current Status: The snippets do not provide a clear outcome or status for this specific case.

  7. U.S. Supreme Court Case (related to I/P Engine Inc. v. AOL Inc. et al.)

    • Plaintiff(s) / Petitioner(s): Not explicitly detailed in the provided snippets, but related to the underlying Federal Circuit cases.
    • Defendant(s) / Respondent(s): Not explicitly detailed in the provided snippets, but related to the underlying Federal Circuit cases.
    • Jurisdiction: U.S. Supreme Court
    • Case Number: 14-1358
    • Filing Date: The case number indicates a 2014 filing year.
    • Outcome/Current Status: The provided snippets do not provide an outcome for this specific Supreme Court case.

  8. Massachusetts District Court Case

    • Plaintiff(s): Not explicitly detailed in the provided snippets.
    • Defendant(s): Not explicitly detailed in the provided snippets.
    • Jurisdiction: Massachusetts District Court
    • Case Number: 1:10-cv-10065
    • Filing Date: Not explicitly detailed in the provided snippets.
    • Outcome/Current Status: The provided snippets do not provide an outcome or current status for this specific case.

Generated 5/29/2026, 6:00:00 PM