Patent 9737072
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.
- IPR2025-01458IPRfiled Aug 27, 2025vs. Clean Chemistry, Inc. et al.Discretionary Denial
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Cases on file (1)
Group view →Specific litigation cases in our database that name US patent 9737072. The free-form analysis below may also discuss cases beyond this list.
- 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 senior US patent analyst, I have analyzed the litigation history of US patent 9,737,072. Based on my review of various legal and patent databases as of April 26, 2026, there is one known district court case and one associated inter partes review (IPR) proceeding involving this patent.
District Court Litigation
Case Title: Enviro Tech Chemical Services, Inc. v. Clean Chemistry, Inc.
- Plaintiff: Enviro Tech Chemical Services, Inc.
- Defendant: Clean Chemistry, Inc.
- Jurisdiction: U.S. District Court for the Western District of Texas
- Case Number: 1:24-cv-01313
- Filing Date: October 29, 2024
- Status: The case is currently open. A motion to dismiss filed by Clean Chemistry, Inc. was denied. A trial is scheduled to begin the week of December 28, 2026. The lawsuit alleges infringement of US Patent Nos. 9,737,072, 8,546,449, 9,363,997, and 9,730,443.
Patent Trial and Appeal Board (PTAB) Proceedings
Inter Partes Review (IPR)
- Proceeding Number: IPR2025-01458
- Petitioner: Clean Chemistry, Inc.
- Patent Owner/Respondent: Enviro Tech Chemical Services, Inc.
- Filing Date: August 26, 2025
- Outcome/Current Status: The Patent Trial and Appeal Board exercised its discretion and denied the institution of the inter partes review. The case was terminated on February 17, 2026.
At present, no other litigation involving US patent 9,737,072 has been identified.
Generated 5/14/2026, 12:48:35 AM