Topsoe, Inc. et al. vs. L'AIR LIQUIDE, SOCIÉTÉ ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCÉDÉS GEORGES CLAUDE

Explore the PTAB proceeding IPR2025-01173 filed by Topsoe, Inc. et al. on 2025-07-02. This includes filing dates, application numbers, tech centers, patent numbers, and current case status.

Proceeding Overview

Proceeding Number

IPR2025-01173

Filing Date

2025-07-02

Accorded Filing Date

2025-07-02

Institution Decision Date

2025-12-23

Last Modified Date

2026-09-08

Proceeding Type

IPR

Termination Date

—

Trial Status

Trial Instituted

Parties & Counsel

Petitioner

Topsoe, Inc. et al.

Represented By

ANDREWS, JEFFREYet al

Patent Owner / Respondent

L'AIR LIQUIDE, SOCIÉTÉ ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCÉDÉS GEORGES CLAUDE

Represented By

Robinson, Eagleet al

Tribunal & Venue

Tribunal

Patent Trial and Appeal Board (USPTO)

Technology Center

TC 1700 - Chemical & Materials Engineering

Patent Information

1 Patent Involved

Respondent Application Number 17399277

Respondent Patent Number 11673805

External Links

Espacenet

Google Patents

Respondent Inventor Sophia SCHMIDT et al

Respondent Tech Center TC 1700 - Chemical & Materials Engineering

Address and Attorney/Agent Information

5 Registered Practitioners

Power of Attorney & Correspondence

Firm / Entity Name American Air Liquide - Intellectual Property Department

Customer Number —

Address 9811 Katy Freeway, Suite 100, Houston, TX, 77024, UNITED STATES

Attorney / Agent Information

Reg #	Name	Phone
55254	Elwood Haynes	713-624-8954
55727	Allen White	713-624-8787
57995	Justin Murray	713-624-8833
63080	Jiyun Xu	--
65687	Yan Jiang	610-640-9350

Proceeding Documents

Order: Conduct of Proceeding Revised ORDER

2026-09-08 FILING PARTY: BOARD

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3002

Ex. 3002 Attorney Correspondence Exhibit

2026-09-08 FILING PARTY: BOARD

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Patent Owner Sur-Reply OTHER

2026-08-19 FILING PARTY: PATENT OWNER

Download

2024

Klein Depo2 Transcript Exhibit

2026-08-19 FILING PARTY: PATENT OWNER

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Fourth Stipulation to Modify Due Date 3 NOTICE

2026-08-14 FILING PARTY: PATENT OWNER

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Topsoe, Inc. et al. vs. L'AIR LIQUIDE, SOCIÉTÉ ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCÉDÉS GEORGES CLAUDE

Proceeding Overview

Parties & Counsel

Petitioner

Topsoe, Inc. et al.

Represented By

Patent Owner / Respondent

L'AIR LIQUIDE, SOCIÉTÉ ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCÉDÉS GEORGES CLAUDE

Represented By

Tribunal & Venue

Patent Information

Address and Attorney/Agent Information

Power of Attorney & Correspondence

Attorney / Agent Information

Proceeding Documents

Order: Conduct of Proceeding Revised ORDER

Ex. 3002 Attorney Correspondence Exhibit

Patent Owner Sur-Reply OTHER

Klein Depo2 Transcript Exhibit

Fourth Stipulation to Modify Due Date 3 NOTICE

Petitioner's Request for Oral Argument OTHER

Revised Scheduling Order ORDER

Patent Owner Request for Oral Argument OTHER

Third Stipulation to Modify Due Date 3 OTHER

PO Notice of Second Deposition of Dr. Klein NOTICE

Petitioner's Reply to Patent Owner's Response REPLYTOOPP

Deposition Transcript of Joseph D. Smith, Ph.D. Exhibit

Reply Declaration of Prof. Dr. Harald Klein Exhibit

Petitioner's Notice of Deposition of Joseph D. Smith, Ph.D. NOTICE

Smith Declaration Exhibit

Patent Owner Response RESPONSE

Smith CV Exhibit

Klein Depo Transcript Exhibit

Second Stipulation to Modify Due Dates 1-3 NOTICE

PO Notice of Deposition of Dr. Klein NOTICE

Stipulation to Modify Due Dates 1-3 NOTICE

Order: Other ORDER

Petitioner's Updated Power of Attorney NOTICE

Petitioner's Motion to Withdraw and Substitute Counsel MOTION

Petitioner's Updated Mandatory Notices NOTICE

Authorization to file a motion to withdraw and substitute lead counsel Exhibit

SCHEDULING ORDER ORDER

Institution Decision: Grant DECISION

Director Discretionary Decision: Refer RESPONSE

Patent Owner Preliminary Sur-Reply OTHER

Petitioner's Reply to Patent Owner's Preliminary Response OTHER

Petitioner's Sur-Reply Opposing PO Request for Discretionary Denial OTHER

Email Correspondence Exhibit

PO Reply ISO Discretionary Denial OTHER

Email Correspondence Exhibit

Updated Power of Attorney NOTICE

Petitioner's Response to Patent Owner's Request for Discretionary Denial RESPONSE

U.S. Patent Application no. 16/682,781, Office Action, June 30, 2022 Exhibit

Transaction History Report for 17/399,277 Exhibit

Updated Mandatory Notices NOTICE

Patent Owner Preliminary Response POPR

Family 8 Exhibit

Family 5 Exhibit

Family 4 Exhibit

Family 14 Exhibit

Darde-US Exhibit

Kresnvak Exhibit

Family 2 Exhibit

Family 11 Exhibit

Reinertsen-PCT Exhibit

Reinertsen File History Exhibit

Darde-US File History Exhibit

Patent Owner's Request for Discretionary Denial RESPONSE

Search Printout Exhibit

Search Subclasses Exhibit

L’Air Liquide Publications Exhibit

Family 9 Exhibit

805 Patent Family Exhibit

Notice: Mandatory Notice NOTICE

Notice: Power of Attorney NOTICE

Family 1 Exhibit

Family 6 Exhibit

Family 7 Exhibit

Family 10 Exhibit

Notice: Mandatory Notice NOTICE