Portus Pty Ltd

Portus Pty Ltd is an Australian intellectual property holding company that operates in conjunction with its affiliate, Portus Singapore Pte. Ltd.. The Australian entity, Portus Pty Ltd, is a private company registered in New South Wales, active since 1999. The Singaporean entity, Portus Singapore Pte. Ltd., is a private company limited by shares, incorporated in Singapore in 2002. Public information regarding the company's employee count or revenue is not available.

Portus is a non-practicing entity (NPE) that holds and monetizes a patent portfolio through licensing and litigation. The company does not manufacture products or offer commercial services. Its patent assets are in the field of network communications, access control, and remote device monitoring, particularly as applied to smart home automation and security products. Past litigation has involved patents related to systems for managing communications between networked devices, such as smart locks, cameras, and gateways.

The company's patent-litigation posture is that of a patent assertion entity. As indicated by the provided case data, Portus acts exclusively as a plaintiff in patent infringement lawsuits and has not been a defendant. The two tracked cases from April 2026 are plaintiff actions filed in the U.S. District Courts for the Eastern and Northern Districts of Texas, venues known for patent litigation. This is consistent with prior campaigns, such as one initiated in 2019 that also targeted companies in the Eastern District of Texas.

The provided authoritative data lists two recent lawsuits filed on April 23, 2026: Portus Singapore Pte Ltd et al. v. Whirlpool Corporation and Portus Singapore Pte Ltd et al. v. Lennox International Inc. These cases reflect the company's ongoing assertion of its smart home and network communication patents against manufacturers of connected devices. Earlier litigation campaigns by Portus have targeted other major technology and smart home companies, including AT&T and August Home.