A newly filed opposition in IPR2025-00677 puts a familiar but strategically important PTAB issue front and center: whether a patent owner’s proposed substitute claims can survive scrutiny when offered through a contingent motion to amend. In its April 7, 2026 filing, the petitioner asks the Patent Trial and Appeal Board to deny the patent owner’s amendment request, arguing that the revised claims still do not satisfy the governing patentability and procedural standards.

A contingent motion to amend is exactly what it sounds like: the patent owner proposes substitute claims only if the Board finds the original claims unpatentable.

Toyota Motor Corporation has filed a new inter partes review proceeding at the Patent Trial and Appeal Board, opening what could become a closely watched dispute for companies managing automotive and mobility-related patent portfolios. The petition, docketed as IPR2026-00333 and filed on April 7, 2026, signals Toyota’s effort to challenge the validity of an issued U.S. patent through the PTAB’s administrative review process.

At this early stage, the case caption identifies Toyota Motor Corporation as the petitioner, but the publicly available docket entry does not yet provide the full details practitioners will want most, including the patent number at issue, the named patent owner, and the specific prior-art combinations and statutory grounds asserted in the petition.

Toyota Motor Corporation has filed a new inter partes review petition at the Patent Trial and Appeal Board, opening IPR2026-00333 on April 7, 2026. At this early stage, the docket identifies Toyota as the petitioner, but practitioners will want to monitor the record closely as the challenged patent, real parties in interest, and the full invalidity theories are fleshed out through the petition and any preliminary response.

An IPR filing is often an early signal of a broader enforcement fight or a parallel district court campaign, making proceedings like this one worth following even before institution.

Microsoft Corporation has filed a new inter partes review petition against QOMPLX LLC at the Patent Trial and Appeal Board, opening a fresh front in what could become an important dispute over patent validity and competitive positioning. The case, Microsoft Corporation v. Qomplx LLC, was filed on April 7, 2026, and is docketed as IPR2026-00325.

At this stage, the PTAB docket reflects the filing of the petition, with Microsoft as petitioner and QOMPLX as patent owner.

Apple Inc. has filed a new inter partes review petition at the Patent Trial and Appeal Board, opening IPR2026-00332 on April 3, 2026. At this stage, the public docket identifies Apple as the petitioner, but practitioners should note that early PTAB dockets often reveal only limited information until the petition, exhibits, and mandatory notices are fully available.

Based on the current case listing, the key immediate takeaway is that Apple is asking the Board to reconsider the validity of at least one issued patent through the PTAB’s trial system.

Toyota Motor Corporation has filed a new inter partes review petition at the Patent Trial and Appeal Board, opening proceeding IPR2026-00333 on April 7, 2026. The filing places at issue the validity of a patent that, while not identified in the docket caption itself, is now the subject of a formal PTAB challenge by one of the world’s largest automotive companies. For patent owners and accused infringers alike, that alone makes this proceeding worth watching closely.

At this stage, the key public-facing details are the petitioner, the forum, and the timing.

The Patent Trial and Appeal Board’s docket entry in Entegris, Inc., PGR2026-00037, marks the start of a post-grant review proceeding that practitioners should watch closely. Although a newly filed PTAB matter does not yet provide a final merits ruling, the case is significant because post-grant review remains one of the most powerful mechanisms for attacking recently issued patents on a wide range of grounds, including patent eligibility, written description, enablement, indefiniteness, and novelty or obviousness.

Based on the filing posture, the key issue is not yet who ultimately wins, but what the PTAB will permit the challenger to litigate and how aggressively it will examine the patent under the broader PGR framework.