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.