Background
Zaxcom, Inc. is a New Jersey-based manufacturer of professional wireless audio equipment used widely in film, television, and broadcast production. Its flagship innovation is a line of wireless transmitters that simultaneously record audio locally — to a microSD card inside the transmitter itself — while also broadcasting a wireless signal to a receiver. This “double capture” architecture was a breakthrough: if the wireless signal drops or degrades (a common problem in noisy RF environments), the clean recording on the transmitter card is preserved. The Academy of Motion Picture Arts and Sciences recognized Zaxcom with a Technical Achievement Award (the “Scientific and Engineering Oscar”), and the Television Academy honored the technology with an Emmy Award for Outstanding Achievement in Engineering Development.
RØDE Microphones, LLC, an Australian audio hardware company owned by Freedman Electronics Pty Ltd., entered the professional wireless recording market with its Wireless Pro system. Zaxcom alleged that RØDE’s products infringed several of its patents, and the two companies became embroiled in patent litigation. RØDE responded by filing four inter partes review (IPR) petitions between December 2024 and February 2025, seeking to invalidate the patents at Zaxcom’s heart. Two earlier challenges were resolved in Zaxcom’s favor by late 2025. These two final written decisions—issued simultaneously on June 11, 2026—resolve the remaining two IPR petitions.
IPR2025-00230 targets U.S. Patent No. 7,711,443, titled “Virtual wireless multitrack recording system,” which covers the core concept of local recording on the wireless transmitter. IPR2025-00232 targets U.S. Patent No. 10,276,207, a later patent in the same wireless recording technology family.
The Court’s Holding
The PTAB issued final written decisions in both IPR proceedings on June 11, 2026, sustaining the validity of Zaxcom’s challenged patent claims. RØDE argued that the claimed inventions were obvious in light of prior art—that is, that skilled engineers in the wireless audio field could have combined existing technologies to arrive at Zaxcom’s designs without any inventive step. The PTAB disagreed.
Central to the Board’s reasoning were the secondary considerations of non-obviousness, also known as objective indicia. When determining whether an invention was obvious, courts and the PTAB look not just at prior art references but also at real-world evidence: did the invention succeed commercially? Did it solve a long-felt need? Did the industry recognize it as innovative? The Oscar and Emmy awards Zaxcom received for its wireless recording technology—granted by the film and television industries’ own engineering committees specifically for technological merit—constituted powerful evidence of industry recognition and the non-obvious nature of the advance. The PTAB found that RØDE’s prior art arguments could not overcome these objective indicia, and upheld the challenged claims in both patents.
Key Takeaways
- Industry awards — including prestigious trade awards like Oscars and Emmys awarded for technical merit — can serve as probative objective indicia of non-obviousness in PTAB proceedings.
- Zaxcom has now prevailed in all four IPR challenges brought by RØDE/Freedman, with the final two challenges decided on the same day in back-to-back final written decisions.
- The challenged patents (U.S. 7,711,443 and U.S. 10,276,207) covering Zaxcom’s local-recording wireless transmitter technology remain valid, strengthening Zaxcom’s position in the underlying patent infringement litigation.
- IPR challengers should carefully evaluate secondary considerations—particularly commercial success and industry recognition—before filing petitions against patents held by award-winning inventors.
Why It Matters
This outcome demonstrates the practical power of objective indicia of non-obviousness at the PTAB. Obviousness is the most common basis for patent challenges, and petitioners often focus heavily on prior art combinations while underestimating the evidentiary weight of real-world recognition. When a technology has received awards from the Academy of Motion Picture Arts and Sciences or the Television Academy—bodies with expert technical committees—that recognition carries significant weight as evidence that skilled practitioners viewed the invention as a genuine advance, not a routine combination of known elements.
For patent owners in specialized technical fields where professional associations confer awards for engineering achievement, this decision is a reminder to document and present that recognition prominently in PTAB proceedings. For challengers, it underscores the importance of addressing secondary considerations head-on rather than relying solely on prior art combinations. Zaxcom now exits this four-IPR gauntlet with its wireless recording patent portfolio intact.
Surfaced via Law360 IP.