Patent 9363997
Litigation summary
Past and pending lawsuits — plaintiffs, defendants, jurisdictions, outcomes, and notable rulings.
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PTAB activity (1)
AIA trial proceedings — IPR, PGR, CBM — filed at the USPTO Patent Trial and Appeal Board against this patent. Sourced directly from the PTAB Trial API.
- IPR2025-01471IPRfiled Sep 2, 2025vs. Clean Chemistry, Inc.Discretionary Denial
Cached for 24 hours. Status strings are sourced verbatim from the PTAB API; the colored badge is our heuristic classification.
Cases on file (2)
Group view →Specific litigation cases in our database that name US patent 9363997. The free-form analysis below may also discuss cases beyond this list.
- Clean Chemistry, Inc. v. Enviro Tech Chemical Services, Inc.filed Sep 2, 2025IPR2025-01471Patent Trial and Appeal Board (PTAB)Not Instituted - Procedural
Defendants: Enviro Tech Chemical Services, Inc.
- Enviro Tech Chemical Services, Inc. v. Clean Chemistry, Inc.filed Oct 29, 20241:24-cv-01313U.S. District Court for the Western District of TexasOpen
Defendants: Clean Chemistry, Inc.
Litigation summary
Past and pending lawsuits — plaintiffs, defendants, jurisdictions, outcomes, and notable rulings.
As a patent attorney, I have investigated litigation involving US Patent 9363997. Here's what I've found:
Known Litigation Involving US Patent 9363997:
District Court Case:
- Plaintiff(s): Enviro Tech Chemical Services, Inc.
- Defendant(s): Clean Chemistry, Inc.
- Jurisdiction: U.S. District Court for the Western District of Texas
- Case Number: 1:24-cv-01313
- Filing Date: Not explicitly stated in the provided snippets, but the case is mentioned in a petition for Inter Partes Review filed on September 2, 2025, indicating it was filed before this date.
- Outcome/Current Status: The '997 patent was asserted in this litigation. The case is ongoing.
PTAB Case (Inter Partes Review):
- Plaintiff(s) (Petitioner): Clean Chemistry, Inc. ("Clean Chem")
- Defendant(s) (Patent Owner): Enviro Tech Chemical Services, Inc. (Implied, as they are the assignee of the patent)
- Jurisdiction: Patent Trial and Appeal Board (PTAB)
- Case Number: IPR2025-01471
- Filing Date: September 2, 2025
- Outcome/Current Status: The petition requests an Inter Partes Review of claims 1-14 of US Patent 9363997. The status is "Not Instituted - Procedural."
It's important to note that the patent (US9363997B2) is currently listed as "Active".
Generated 5/23/2026, 12:46:28 PM