Patent 8914526
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 (3)
Group view →Specific litigation cases in our database that name US patent 8914526. The free-form analysis below may also discuss cases beyond this list.
- 2:26-cv-00336Texas Eastern District CourtJudge Rodney GilstrapOpen
Defendants: Trane Technologies Company LLC
Other patents asserted: 9961097
The accused products are home security systems and their related control systems.
- Portus Singapore Pte Ltd et al. v. Whirlpool Corporationfiled Apr 23, 20262:26-cv-00337U.S. District Court for the Eastern District of Texasterminated Apr 23, 2026Terminated
Defendants: Whirlpool Corporation
- Portus Singapore Pte Ltd et al. v. Lennox International Inc.filed Apr 23, 20263:26-cv-01328U.S. District Court for the Northern District of TexasOpen
Defendants: Lennox International Inc.
Litigation summary
Past and pending lawsuits — plaintiffs, defendants, jurisdictions, outcomes, and notable rulings.
Litigation History of U.S. Patent 8,914,526
As of May 1, 2026, U.S. Patent 8,914,526, assigned to Portus Singapore Pte Ltd, is involved in recently filed litigation. The patent, which covers technology for remote monitoring and control of home networks via a web browser, has been asserted in multiple cases against various technology and home appliance companies.
Details of the known litigation are as follows:
1. Case Against Trane Technologies Company LLC
- 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: Open. This case also involves U.S. Patent 9,961,097, a related patent. The accused products are home security and control systems.
2. Case Against Whirlpool Corp.
- Plaintiff(s): Portus Singapore Pte Ltd & Portus Pty Ltd
- Defendant(s): Whirlpool Corporation
- Jurisdiction: U.S. District Court for the Eastern District of Texas
- Case Number: 2:26-cv-00337
- Filing Date: April 23, 2026
- Status: Terminated. The case was terminated on the same day it was filed due to a "CASE OPENING ERROR by Attorney," without a judge being assigned.
3. Case Against Lennox International Inc.
- Plaintiff(s): Portus Singapore Pte Ltd & Portus PTY Ltd
- Defendant(s): Lennox International Inc.
- Jurisdiction: U.S. District Court for the Northern District of Texas
- Case Number: 3:26-cv-01328
- Filing Date: April 23, 2026
- Status: Open.
It should be noted that the assignee, Portus Singapore Pte Ltd, has been involved in other intellectual property-related legal matters, including a legal malpractice lawsuit against a former law firm concerning the prosecution of the application that led to this patent. Additionally, a related case was filed by Portus against Schneider Electric USA, Inc. in the District of Delaware in 2023, though it is not specified if patent '526 was at issue in that particular case.
Generated 5/1/2026, 11:03:16 PM