Litigation summary

tool_code
print(google_search.search(queries=["US patent 10574721 litigation", "IPR2025-01400 status", "Texas Eastern District Court 2:25-cv-00098 status", "US10574721 PTAB IPR2025-01400", "Unified Patents 10574721 litigation"]))
thought
The user is asking for known litigation involving US patent 10574721. I need to search for this patent number on litigation tracking sites.

Based on the previously generated section, I already know about two specific cases:

1. PTAB case IPR2025-01400
2. US case filed in Texas Eastern District Court, 2:25-cv-00098

I need to find more details about these cases, specifically:

• Plaintiff(s)
• Defendant(s)
• Jurisdiction (already known for these two)
• Case number (already known for these two)
• Filing date
• Outcome or current status

I will use the provided search results to gather this information. The current date is April 26, 2026, so I need to look for the most up-to-date status.

From the provided context:

• "PTAB case IPR2025-01400 filed (Not Instituted - Procedural)"
• "US case filed in Texas Eastern District Court litigation https://portal.unifiedpatents.com/litigation/Texas%20Eastern%20District%20Court/case/2%3A25-cv-00098"

The Unified Patents links seem to be a good starting point for more details.

Let's execute the search queries.### Known Litigation Involving US Patent 10,574,721

As of April 26, 2026, United States Patent 10,574,721 is involved in at least two known litigation proceedings: one before the Patent Trial and Appeal Board (PTAB) and one in the U.S. District Court for the Eastern District of Texas.

Here are the details for each known case:

1. PTAB Inter Partes Review (IPR) Proceeding

   • Case Number: IPR2025-01400
   • Plaintiff(s): Not specified in the provided patent document, typically the Petitioner challenging the patent. The provided text indicates "Petitioner: 'Unified Patents PTAB Data' by Unified Patents is licensed under a Creative Commons Attribution 4.0 International License."
   • Defendant(s): The patent owner, Skysong Innovations LLC (current assignee).
   • Jurisdiction: Patent Trial and Appeal Board (PTAB)
   • Filing Date: The case was filed, but a specific filing date within 2025 is not provided in the readily available patent information.
   • Outcome or Current Status: "Not Instituted - Procedural". This means the PTAB decided not to proceed with a full review of the patent's claims based on a procedural issue.

2. U.S. District Court Litigation

   • Case Number: 2:25-cv-00098
   • Plaintiff(s): Not explicitly stated in the provided patent document, but usually the patent owner (Skysong Innovations LLC) is the plaintiff in district court infringement cases.
   • Defendant(s): Not specified in the provided patent document.
   • Jurisdiction: Texas Eastern District Court.
   • Filing Date: The case was filed in 2025, but a specific filing date is not provided in the readily available patent information.
   • Outcome or Current Status: The status is listed as "litigation". No further outcome or current status for 2026 is available in the provided documentation, and a comprehensive search of court dockets (e.g., PACER) would be required for an update.