A new inter partes review proceeding has been filed at the Patent Trial and Appeal Board against Zoom Communications, Inc., opening another venue to watch for practitioners tracking software and communications-platform patent disputes. The petition, docketed as IPR2026-00461 and filed on August 24, 2026, places one of Zoom’s patents under PTAB scrutiny and may offer useful guidance on how challengers are framing invalidity arguments in the collaboration and conferencing space.
At this stage, the publicly available case caption identifies Zoom Communications, Inc. as the patent owner in the proceeding, but the docket entry should be monitored closely for the specific patent number, the identity of the petitioner, and the precise claims challenged as the record develops. In PTAB practice, those details often shape not only institution prospects, but also broader strategic questions around parallel district court litigation, stays, and settlement leverage.
The grounds for review in an IPR typically center on anticipation or obviousness under 35 U.S.C. §§ 102 and 103, based on patents and printed publications. For patent practitioners, the key documents to watch will be the petition itself, any accompanying expert declaration, and the preliminary response. Those filings should clarify whether the challenger is relying on a single primary reference, a multi-reference obviousness combination, or an attack focused on claim construction and motivation-to-combine theories. In software-related cases, PTAB outcomes can turn on how the parties frame functional claim language, networking features, and whether the prior art teaches the claimed coordination or communication architecture with enough specificity.
This proceeding is worth following for several reasons. First, Zoom remains a high-profile technology company, and any PTAB challenge involving its portfolio may be relevant to licensing strategy, competitor disputes, and valuation of communications-related patents. Second, software and platform patents continue to draw close attention at the Board, especially where claims involve distributed systems, user interactions, or backend coordination features that can invite nuanced prior-art disputes. Third, for in-house IP counsel, the case may provide another data point on how petitioners are approaching institution strategy in 2026, including claim selection, expert support, and the use of multiple art combinations.
As the docket matures, practitioners should watch for institution decisions, claim-construction positions, and any indication of parallel proceedings that could affect timing or estoppel. Early PTAB filings in cases like this often reveal as much about litigation strategy as they do about patentability.
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