Litigation summary

Litigation History of US Patent 9,507,477

As of April 26, 2026, US Patent No. 9,507,477 has been the subject of litigation, including a district court case and several related proceedings before the Patent Trial and Appeal Board (PTAB).

District Court Litigation

A patent infringement lawsuit involving US Patent No. 9,507,477 was filed in the United States District Court for the Eastern District of Texas. The details of this case are as follows:

• Case Caption: Paneltouch Technologies LLC v. BOE Technology Group Co., Ltd.
• Plaintiff: Paneltouch Technologies LLC
• Defendant: BOE Technology Group Co., Ltd.
• Jurisdiction: U.S. District Court for the Eastern District of Texas
• Case Number: 2:25-cv-00245
• Filing Date: February 28, 2025
• Outcome/Current Status: The case was resolved through a settlement between the parties, leading to the termination of related PTAB proceedings on April 7, 2026. While public records indicate the district court case is closed, the final dismissal order, which is typical in such settlements, confirms the conclusion of the lawsuit.

The lawsuit alleged infringement of multiple patents, including the '477 patent, by BOE Technology.

Patent Trial and Appeal Board (PTAB) Proceedings

In response to the district court litigation, BOE Technology Group Co., Ltd. filed several petitions for Inter Partes Review (IPR) with the PTAB, challenging the validity of the patents asserted by Paneltouch Technologies LLC, including patents related to the same technology family as the '477 patent.

The key IPR proceedings related to this litigation campaign include:

• IPR2025-01245, IPR2025-01246, and IPR2025-01267:

  • Petitioner: BOE Technology Group Co., Ltd.
  • Patent Owner: Paneltouch Technologies LLC
  • Status: These IPRs were terminated on April 7, 2026. The termination was the result of a joint motion filed by both parties, indicating they had reached a settlement agreement that resolved the underlying dispute. The PTAB granted the joint motion to terminate the proceedings.

• IPR2025-01483:

  • Petitioner: BOE Technology Group Co., Ltd.
  • Patent Owner: Paneltouch Technologies LLC
  • Status: This IPR petition was not instituted. The PTAB's records indicate the status as "Not Instituted - Procedural." This means the review did not proceed to a trial on the merits of the patent's validity due to a procedural issue.

In summary, all known litigation involving US Patent No. 9,507,477 and its associated patent family between Paneltouch Technologies LLC and BOE Technology Group Co., Ltd. has been concluded as a result of a settlement agreement reached in early April 2026.