Patent 9961097

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 (7)

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Specific litigation cases in our database that name US patent 9961097. 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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Litigation History of U.S. Patent 9,961,097

As of May 1, 2026, U.S. Patent 9,961,097, assigned to Portus Singapore Pte Ltd., has been asserted in numerous patent infringement lawsuits across various U.S. District Courts. The patent holder has engaged in litigation against multiple companies, primarily in the smart home, security, and telecommunications industries. The following is a list of known litigation involving this patent, compiled from public court records and patent litigation databases.

Key Litigant:

  • Plaintiff: In the cases listed, the plaintiff is consistently Portus Singapore Pte Ltd. (often with its Australian subsidiary, Portus Pty Limited).

Utah District Court

  • Plaintiff(s): Portus Singapore Pte Ltd.
  • Defendant(s): Vivint Smart Home, Inc.
  • Jurisdiction: U.S. District Court for the District of Utah
  • Case Number: 2:24-cv-00343
  • Filing Date: April 29, 2024
  • Status/Outcome: The current status of this case is pending.

Texas Western District Court

  • Plaintiff(s): Portus Singapore Pte Ltd.

  • Defendant(s): Reolink Digital Technology Co., Ltd.

  • Jurisdiction: U.S. District Court for the Western District of Texas

  • Case Number: 6:22-cv-00545

  • Filing Date: May 27, 2022

  • Status/Outcome: Records indicate this case was terminated on October 7, 2022; the specific outcome (e.g., settlement, dismissal) is not specified in the available data.

  • Plaintiff(s): Portus Singapore Pte Ltd.

  • Defendant(s): Wyze Labs, Inc.

  • Jurisdiction: U.S. District Court for the Western District of Texas

  • Case Number: 6:22-cv-00546

  • Filing Date: May 27, 2022

  • Status/Outcome: This case is listed as terminated.

Texas Eastern District Court

  • Plaintiff(s): Portus Singapore Pte Ltd. & Portus Pty Ltd.

  • Defendant(s): Trane Technologies Company LLC

  • Jurisdiction: U.S. District Court for the Eastern District of Texas

  • Case Number: 2:26-cv-00336

  • Filing Date: April 23, 2026

  • Status/Outcome: As a recently filed case, it is currently pending.

  • Plaintiff(s): Portus Singapore Pte Ltd.

  • Defendant(s): AT&T Inc. (specifically targeting AT&T Digital Life)

  • Jurisdiction: U.S. District Court for the Eastern District of Texas

  • Case Number: 2:19-cv-00044

  • Filing Date: February 7, 2019

  • Status/Outcome: The case was terminated. An expert witness report notes the matter settled out of court.

Texas Northern District Court

  • Plaintiff(s): Portus Singapore Pte Ltd.
  • Defendant(s): AXP Group (Vivint)
  • Jurisdiction: U.S. District Court for the Northern District of Texas
  • Case Number: 3:19-cv-00310
  • Filing Date: February 7, 2019
  • Status/Outcome: This case has been closed.

Illinois Central District Court

  • Plaintiff(s): Portus Singapore Pte Ltd.
  • Defendant(s): Zmodo Technology
  • Jurisdiction: U.S. District Court for the Illinois Central District Court (previously listed as Northern District of Illinois)
  • Case Number: 2:19-cv-02029
  • Filing Date: February 7, 2019
  • Status/Outcome: This case has been closed.

Additional cases are noted in litigation databases, though specific details may vary. The litigation history demonstrates a clear and consistent effort by Portus Singapore Pte Ltd. to enforce its rights under US Patent 9,961,097 against various technology providers.

Generated 5/1/2026, 10:42:53 PM