ResMed Inc. is a global medical equipment company with dual headquarters in San Diego, California, U.S., and operations originating in Australia, where it was founded in June 1989 by Peter Farrell. The company became publicly traded, listed on both the New York Stock Exchange (NYSE: RMD) and the Australian Securities Exchange (ASX: RMD). As of May 2026, ResMed has a market capitalization of approximately $30.16 billion USD, employs around 10,600 people worldwide, and reported annual revenue of $5.15 billion in fiscal year 2025.
ResMed specializes in developing, manufacturing, and distributing cloud-connectable medical devices and software solutions. Its primary product lines address the treatment of sleep apnea (e.g., CPAP devices, masks), chronic obstructive pulmonary disease (COPD), and other respiratory conditions, including ventilators and bilevel devices. The company also offers out-of-hospital software platforms, such as Brightree and MatrixCare, designed to streamline care transitions and management for home health, hospice, and senior living providers. ResMed operates in over 140 countries and holds a significant share of the global flow generator market.
In terms of patent litigation, ResMed Inc. demonstrates the posture of an operating company defending its products and services. Its tracked case history shows one appearance as a defendant and no appearances as a plaintiff, indicating it is primarily a target of patent assertion rather than an aggressor. ResMed holds a substantial intellectual property portfolio, reportedly exceeding 10,000 pending or issued patents and designs.
The sole tracked case involving ResMed Inc. is Fractus, S.A. v. ResMed Inc. et al., filed on October 9, 2025, in the U.S. District Court for the Southern District of California. In this suit, Fractus, S.A., a company known for asserting patents related to internal antenna technology for wireless and IoT devices, alleges that ResMed's connected sleep apnea devices infringe its patents covering miniaturized, high-performance, multi-band antenna innovations. ResMed has stated its intent to defend its innovations.