IP Verse

Clean Chemistry, Inc. v. Enviro Tech Chemical Services, Inc. et al. - IPR2025-01471

Explore the PTAB proceeding IPR2025-01471 filed by Clean Chemistry, Inc. against Enviro Tech Chemical Services, Inc. et al. on Sep 2, 2025. This includes filing dates, application numbers, tech centers, patent numbers, and current case status.

Case Details

Proceeding Number
IPR2025-01471
Filing Date
Sep 2, 2025
Petitioner
Clean Chemistry, Inc.
Respondent
Enviro Tech Chemical Services, Inc. et al.
Status
Discretionary Denial
Respondent Application Number
14681938
Respondent Tech Center
1600
Respondent Patent Number
9363997
Institution Decision Date
Feb 18, 2026
Termination Date
Feb 18, 2026

Decision Documents New

Decision documents related to this case provide insights into the outcomes of proceedings. These documents are crucial for understanding the legal determinations and implications for the parties involved.

Document NameFiling DateCategoryFiling Party

Director Discretionary Decision: Deny

Feb 18, 2026PAPERBOARD

Director Discretionary Decision: Refer

Dec 18, 2025PAPERBOARD

Counsels Involved New

Details of counsels involved in proceeding number IPR2025-01471.

TypeName
Petitioner CounselKnauss, Danielet al
Respondent CounselHALSEY, ANNAet al

Proceeding Documents

The table below shows documents filed in the case, listing each document name, filing date, document type, and filing party. Tracking these filings indicates the activity of the parties involved in the case, and the types of documents filed can provide insights into the legal strategies being employed.

Document NameFiling DateCategoryFiling Party

Alert me when new update on this case

Director Discretionary Decision: Deny

Feb 18, 2026PAPERBOARD

ORDER Granting Patent Owner’s Motion for Admission Pro Hac Vice of Jennifer R. Sandlin 37 C.F.R. § 42.10

Dec 31, 2025PAPERBOARD

Director Discretionary Decision: Refer

Dec 18, 2025PAPERBOARD

Petitioner's Opposition to Patent Owner's Discretionary Denial Brief

Dec 5, 2025PAPERPETITIONER

U.S. Patent No. 7,919,122

Dec 5, 2025EXHIBITPETITIONER

U.S. Patent No. 8,546,449 File History

Dec 5, 2025EXHIBITPETITIONER

PCT Application No. PCT/US2011/000539

Dec 5, 2025EXHIBITPETITIONER

Written Opinion for PCT Application No. PCT/US2011/000539

Dec 5, 2025EXHIBITPETITIONER

EP2842423 Application

Dec 5, 2025EXHIBITPETITIONER

EP2842423 Application Prosecution History

Dec 5, 2025EXHIBITPETITIONER

Western District of Texas Median Time to Trial Report

Dec 5, 2025EXHIBITPETITIONER

Judge Albright’s Average Time to Trial Report

Dec 5, 2025EXHIBITPETITIONER

Judge Albright Trial Docket

Dec 5, 2025EXHIBITPETITIONER

Claim Construction Order, Envirotech Chemical Services, Inc. v. Clean Chemistry, Inc., No. 1:24cv-01313 (W.D. Tex. Nov. 12, 2025), Dkt. 47

Dec 5, 2025EXHIBITPETITIONER

Envirotech Chemical Services, Inc.’s Initial Infringement Contentions, dated March 4, 2025

Dec 5, 2025EXHIBITPETITIONER

Food Safety, World Health Organization (Oct. 4, 2024)

Dec 5, 2025EXHIBITPETITIONER

Environmental Assessment for Food Contact Notification FCN 23352 (Feb. 1, 2024)

Dec 5, 2025EXHIBITPETITIONER

Chapter 7: Peracetic Acid Acute Exposure Guideline Levels in Acute Exposure Guideline Levels for Selected Airborne Chemicals (2010)

Dec 5, 2025EXHIBITPETITIONER

Patent Owner's Preliminary Response

Dec 5, 2025PAPERPATENT OWNER

Exhibit 2018 - '449 Office Action

Dec 5, 2025EXHIBITPATENT OWNER

Exhibit 2019 - '449 NOA

Dec 5, 2025EXHIBITPATENT OWNER

Exhibit 2020 - Whiteker Declaration

Dec 5, 2025EXHIBITPATENT OWNER

Exhibit 2021 - Claim Construction Order

Dec 5, 2025EXHIBITPATENT OWNER

Exhibit 2022 - Opening Claim Construction Brief

Dec 5, 2025EXHIBITPATENT OWNER

Exhibit 2024 - Whiteker Declaration - Motivation to Combine

Dec 5, 2025EXHIBITPATENT OWNER

Exhibit 2023 - Klibanov DCT Declaration

Dec 5, 2025EXHIBITPATENT OWNER

Motion for PHV Admission of Jennifer Sandlin

Nov 12, 2025PAPERPATENT OWNER

Exhibit 2017 - PHV Declaration of Jennifer Sandlin

Nov 12, 2025EXHIBITPATENT OWNER

Notice: Updated Mandatory Notice

Nov 4, 2025PAPERPATENT OWNER

Notice: Power of Attorney

Nov 4, 2025PAPERPATENT OWNER

Complaint with Exhibits

Nov 3, 2025EXHIBITPATENT OWNER

Scheduling Order

Nov 3, 2025EXHIBITPATENT OWNER

March 24 PTAB Memo

Nov 3, 2025EXHIBITPATENT OWNER

March 26 PTAB Memo

Nov 3, 2025EXHIBITPATENT OWNER

Docket Navigator Time to Trial

Nov 3, 2025EXHIBITPATENT OWNER

Docket Navigator Stay Pending IPR

Nov 3, 2025EXHIBITPATENT OWNER

Preliminary Invalidity Contentions

Nov 3, 2025EXHIBITPATENT OWNER

Bankosky LinkedIn

Nov 3, 2025EXHIBITPATENT OWNER

Discretionary Denial Brief

Nov 3, 2025PAPERPATENT OWNER

Donabed Declaration

Nov 3, 2025EXHIBITPATENT OWNER

Wiseman LinkedIn

Nov 3, 2025EXHIBITPATENT OWNER

WO2024108086

Nov 3, 2025EXHIBITPATENT OWNER

WO2024238884

Nov 3, 2025EXHIBITPATENT OWNER

Clean Chemistry Google Patent Search

Nov 3, 2025EXHIBITPATENT OWNER

Interim Director Discretionary Processes

Nov 3, 2025EXHIBITPATENT OWNER

FAQs for Interim Processes

Nov 3, 2025EXHIBITPATENT OWNER

E-mail regarding provisionally recognized attorney

Oct 31, 2025EXHIBITBOARD

Notice of Intent to Designate Ann Fort as Back-Up Counsel

Oct 27, 2025PAPERPATENT OWNER

PHV Declaration of Ann Fort

Oct 27, 2025EXHIBITPATENT OWNER

Corrected Certificate of Service - Mandatory Notices

Sep 29, 2025PAPERPATENT OWNER

Corrected Certificate of Service - Power of Attorney

Sep 29, 2025PAPERPATENT OWNER

Notice: Mandatory Notice

Sep 23, 2025PAPERPATENT OWNER

Notice: Power of Attorney

Sep 23, 2025PAPERPATENT OWNER

Notice filing date accorded to Petition

Sep 5, 2025PAPERBOARD

U.S. Patent No. 9,363,997

Sep 2, 2025EXHIBITPETITIONER

Prosecution History of U.S. Patent No. 9,363,997

Sep 2, 2025EXHIBITPETITIONER

Curriculum Vitae of Alexander M. Klibanov, Ph.D.

Sep 2, 2025EXHIBITPETITIONER

JP 2006-045147 A ("Okano") (Translated)

Sep 2, 2025EXHIBITPETITIONER

WO 2001/046519 ("Withenshaw")

Sep 2, 2025EXHIBITPETITIONER

U.S. Patent No. 3,432,546 ("Oringer")

Sep 2, 2025EXHIBITPETITIONER

U.S. Patent No. 7,271,137 ("Tucker")

Sep 2, 2025EXHIBITPETITIONER

U.S. Patent No. 2,448,252 to Cornthwaite et al. ("Cornthwaite")

Sep 2, 2025EXHIBITPETITIONER

US Patent Appl Publ No US 2009/0043123 to Copenhafer et al ("Copenhafer")

Sep 2, 2025EXHIBITPETITIONER

US Patent App Publ No US 2009/0175956 to Buschmann et al ("Buschmann '956")

Sep 2, 2025EXHIBITPETITIONER

Luyben, Chemical Reactor Design and Control (2007) ("Luyben")

Sep 2, 2025EXHIBITPETITIONER

Hill, Chemical Engineering Kinetics & Reactor Design (1977) ("Hill")

Sep 2, 2025EXHIBITPETITIONER

Patent Owner's Complaint, Enviro Tech v. Clean Chem

Sep 2, 2025EXHIBITPETITIONER

Patent Owner's Executed Summons, Enviro Tech v. Clean Chem

Sep 2, 2025EXHIBITPETITIONER

Declaration of Alexander M. Klibanov, Ph.D.

Sep 2, 2025EXHIBITPETITIONER

Notice: Power of Attorney

Sep 2, 2025PAPERPETITIONER

Petition: as filed

Sep 2, 2025PAPERPETITIONER