Since the US Patent & Trademark Office’s (PTO) decision to rescind former Director Vidal’s memo on procedures for post-grant proceedings where there is parallel district court litigation, Current Acting Director Coke Morgan has issued four decisions regarding requests for discretionary denials:

• Twitch Interactive, Inc. v. Razdog Holdings LLC, IPR2025-00307; 00308, Paper 18 (P.T.A.B. May 16, 2025)
• Amazon.com v. NL Giken, Inc., IPR2025-00250; 00407, Paper 14 (P.T.A.B. May 16, 2025)
• Arm Ltd. and Mediatek, Inc. v. Daedalus Prime LLC, IPR2025-00207, Paper 10 (P.T.A.B. May 16, 2025)
• Ericsson and Verizon Wireless v. Procomm International, IPR2024-01455, Paper 15 (P.T.A.B. May 16, 2025).

The Director ultimately granted two of the requests and denied the other two.

In Twitch Interactive v. Razdog Holdings LLC, the PTO denied the patent owner’s request for discretionary denial. The parallel district court proceeding did not have a scheduled trial date, and the projected trial date was far beyond the PTO’s final written decision date. The petitioner also provided statistical evidence that the district court would likely issue a stay for the pending inter partes review (IPR) proceeding. Therefore, based on a holistic assessment of the evidence presented, the PTO denied the request for discretionary denial.

In Amazon.com v. NL Giken, Inc, the PTO similarly denied the patent owner’s request for discretionary denial. Here, the issue date for the PTO’s final written decision fell before the parallel district court trial date. The abundance of time between the dates ultimately led to the PTO’s denial.

In contrast, in Arm Ltd. and Mediatek, Inc. v. Daedalus Prime LLC, the PTO granted the patent owner’s request for discretionary denial. The PTO highlighted that it was unlikely that its final written decision would be issued before the start of the district court trial. There also was a lack of probative evidence that the district court would issue a stay if an IPR proceeding was instituted.

Finally, in Ericsson and Verizon Wireless v. Procomm International, the PTO granted the patent owner’s request for discretionary denial. The PTO found that the district court trial would conclude before a final written decision was issued in the IPR proceedings, because the trial date preceded the final written decision date by nine months. Moreover, there was no evidence to support any contention that the district court would issue a stay.

Practice Note: These four decisions emphasize the importance of timing between post-grant proceedings and parallel district court litigation. The PTO is more likely to grant discretionary denial if the final written decision of the post-grant proceeding is issued after the trial concludes in the parallel district court action. If a final written decision is likely to be issued before the trial begins in the parallel proceeding, the PTO is more likely to deny a request for a discretionary denial.