Pompton Plains, NJ – September 30, 2025 – Zaxcom, Inc., a leading innovator in professional audio recording and wireless microphone technology, today announced a significant legal victory at the United States Patent and Trademark Office (USPTO).
Between December 2024 and February 2025, RØDE Microphones, LLC, and its parent company, Freedman Electronics Pty Ltd, filed four separate inter partes review (IPR) challenges seeking to invalidate core Zaxcom patents covering its award-winning wireless recording microphone technology.
In a decision today, the Patent Trial and Appeal Board ruled in favor of Zaxcom on U.S. Patent No. 12,051,444 and dismissed the IPR by denying institution. The Board concluded that RØDE/Freedman did not demonstrate a reasonable likelihood of prevailing with respect to at least one claim of the challenged patent. This means that the IPR petition failed across the board, delivering a decisive win for Zaxcom.
This is the second win for Zaxcom. On August 21, 2025, the Patent Trial and Appellate Board dismissed RØDE/Freedman’s challenge to U.S. Patent No. 7,929,902 entirely. That ruling found the IPR ineligible for filing because RØDE/Freedman had recently acquired Lectrosonics, Inc.’s stock. This company had already challenged the same patent many years earlier. The Board held that Lectrosonics, Inc. was a privy of Petitioner, and therefore, the original IPR Petition was legally barred under 35 U.S.C. § 315(b). RØDE/Freedman argued that Lectrosonics was not a privy of Petitioners, but the Board rejected that explanation.
Two additional challenges brought by RØDE/Freedman remain pending and are expected to be decided on or around June 2026. Zaxcom will continue to defend its patents vigorously.
Zaxcom’s patented digital recording wireless technology has been recognized by both the Academy of Motion Picture Arts and Sciences and the Television Academy for its transformative impact on film, television, and broadcast sound. These rulings reinforce Zaxcom’s position as the true pioneer in this field and a defender of the innovation relied upon by sound professionals worldwide.
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About Zaxcom, Inc.
Zaxcom, Inc. is a U.S.-based manufacturer of professional audio products, including digital recording wireless systems, multitrack recorders, and innovative solutions for film, television, and broadcast production. Founded in 1986, Zaxcom’s mission is to deliver cutting-edge technology that empowers sound professionals worldwide.