Liberty Energy Inc. et al. vs. U.S. Well Services, LLC et al.

Explore the PTAB proceeding IPR2025-01445 filed by Liberty Energy Inc. et al. on 2025-08-29. This includes filing dates, application numbers, tech centers, patent numbers, and current case status.

Proceeding Overview

Proceeding Number

IPR2025-01445

Filing Date

2025-08-29

Accorded Filing Date

2025-08-29

Institution Decision Date

2026-01-09

Last Modified Date

2026-02-10

Proceeding Type

IPR

Termination Date

2026-01-09

Trial Status

Discretionary Denial

Parties & Counsel

Petitioner

Liberty Energy Inc. et al.

Represented By

Walters, Chadet al

Patent Owner / Respondent

U.S. Well Services, LLC et al.

Represented By

FERGUSON, BRIANet al

Tribunal & Venue

Tribunal

Patent Trial and Appeal Board (USPTO)

Technology Center

TC 3600 - Transportation, E-Commerce & Construction

Patent Information

1 Patent Involved

Respondent Application Number 16728359

Respondent Patent Number 11009162

External Links

Espacenet

Google Patents

Respondent Inventor Jared Oehring et al

Respondent Tech Center TC 3600 - Transportation, E-Commerce & Construction

Address and Attorney/Agent Information

15 Registered Practitioners

Power of Attorney & Correspondence

Firm / Entity Name Abel Schillinger, LLP

Customer Number 13897

Address PO Box 80010, Austin, TX, 78708, UNITED STATES

Attorney / Agent Information

Reg #	Name	Phone
35284	George Meyer	512-900-8500
36079	Jeffrey Abel	512-900-8500
44532	Bernadette Bennett	512-900-8500
46767	Angel Herrera Jr	512-900-8500
50417	Heribert Muensterer	512-900-8507
57634	Katrin Venter	571-214-8271
58342	Ethan Schillinger	512-900-8500
63835	Taffie Jones	336-741-2932
66027	David Pittman	312-580-9696
66575	Brett Hamilton	512-900-8520
68730	Lei Guo	512-900-8500
69778	Max Kolar	512-900-8500
75702	Jaclyn Torres	512-900-8535
76319	Alex Jacobs	847-797-1354
82214	Maria Amon	512-900-8518

Proceeding Documents

106

Director Discretionary Decision: Deny RESPONSE

2026-01-09 FILING PARTY: BOARD

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1063

EX1063 - Patent Owner Complaint - EDTX-2-25-cv-00522 Exhibit

2025-12-09 FILING PARTY: PETITIONER

Download

1073

EX1073 - Caterpillar at a Glance webpage Exhibit

2025-12-09 FILING PARTY: PETITIONER

Download

1067

EX1067 - Patent Owner Third Amended Complaint - SDTX-4-24-cv-00839 Exhibit

2025-12-09 FILING PARTY: PETITIONER

Download

1062

EX1062 - Analysis of the $69.6 Bn Hydraulic Fracturing Industry 2025-2030 Exhibit

2025-12-09 FILING PARTY: PETITIONER

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Liberty Energy Inc. et al. vs. U.S. Well Services, LLC et al.

Proceeding Overview

Parties & Counsel

Petitioner

Liberty Energy Inc. et al.

Represented By

Patent Owner / Respondent

U.S. Well Services, LLC et al.

Represented By

Tribunal & Venue

Patent Information

Address and Attorney/Agent Information

Power of Attorney & Correspondence

Attorney / Agent Information

Proceeding Documents

Director Discretionary Decision: Deny RESPONSE

EX1063 - Patent Owner Complaint - EDTX-2-25-cv-00522 Exhibit

EX1073 - Caterpillar at a Glance webpage Exhibit

EX1067 - Patent Owner Third Amended Complaint - SDTX-4-24-cv-00839 Exhibit

EX1062 - Analysis of the $69.6 Bn Hydraulic Fracturing Industry 2025-2030 Exhibit

EX1061 - USWS PTAB History Exhibit

Petitioners' Opposition to Patent Owner's Discretionary Denial Brief RESPONSE

EX1066 - Patent Owner Second Amended Complaint - SDTX-4-24-cv-00839 Exhibit

EX1069 - About Gardner Denver webpage Exhibit

EX1070 - Is Gardner Denver Still In Business - ToolingIdeas Webpage Exhibit

EX1071 - Caterpillar Acquires Kemper Valve & Fittings Corp. Press Release Exhibit

EX1060 - U.S. Patent No. 10,964,927 Exhibit

Patent Owner’s Preliminary Response POPR

EX1068 - About Dixon webpage Exhibit

EX1072 - Caterpillar Acquisition of Kemper - SEC Filing Exhibit

EX1065 - Patent Owner First Amended Complaint - SDTX-4-24-cv-00839 Exhibit

EX1064 - Patent Owner Original Complaint - SDTX-4-24-cv-00839 Exhibit

Ex. 2001 - REVISED Declaration Of Richard H. Quarles '162 Exhibit

Patent Owner’s Updated Mandatory Notices NOTICE

Ex. 3001 Exhibit

Ex. 2003 - Case No. 2:24-cv-00884-JRG-RSP – Order to Sever Counterclaims Exhibit

Ex. 2005 - Case No. 2:25-cv-00522-JRG-RSP – Liberty’s Invalidity Contentions Exhibit

Ex. 2002 - Civil Action No. 2:24-cv-00884-JRG-RSP – Defendants’ Amended Answer and Counterclaims Exhibit

Ex. 2009 - Case No. 2:25-cv-00522-JRG-RSP – Joint (Agreed) Motion for Entry of Docket Control Number Exhibit

Ex. 2006 - Federal Court Management Statistics-Profiles Exhibit

Ex. 2007 - USPTO Rescission of Memorandum Addressing Discretionary Denial Procedures Exhibit

Ex. 2004 - Case No. 2:25-cv-00522-JRG-RSP – Scheduling Order Exhibit

Ex. 2008 - Case No. 4:24-CV-00839-KPE – Liberty Motion to Stay Exhibit

Patent Owner’s Discretionary Denial Brief RESPONSE

Ex. 2001 - Declaration Of Richard H. Quarles ISO PO PHV Admission (‘162) Exhibit

Notice Of Intent To Designate Richard H. Quarles As A Provisionally Recognized PTAB Attorney Eligible For Automatic PHV Admission As Back Up Counsel NOTICE

EX1059 - IPR2025-01445 October 27, 2025 Stipulation Exhibit

Petitioners' Updated Exhibit List NOTICE

Petitioners' Updated Mandatory Notices NOTICE

Patent Owner's Mandatory Notice NOTICE

Patent Owner's Power of Attorney NOTICE

Notice: NOTICE OF FILING DATE ACCORDED TO PETITION AND TIME FOR FILING PATENT OWNER PRELIMINARY RESPONSE NOTICE

EX1023 - Pearson-Results of stress-oriented and aligned Exhibit

EX1047 - Collins English Dictionary - QUINTUPLEX definition and meaning Exhibit

EX1039 - Routledge - CRC Press Books Exhibit

EX1022 - Waters-Simultaneous Hydraulic Fracturing of Adjacent Horizontal Exhibit

EX1032 - Power Generation Products Exhibit

EX1003 - 11009162 File history part 1 Exhibit

EX1040 - Dixon Product Literature website Exhibit

EX1021 - US11959371 to Oehring Exhibit

EX1055 - Hydraulic Fracturing Reciprocating Pump Standards Exhibit

EX1057 - Tutterow-2004-Variable speed pumping Exhibit

EX1009 - Part 3 - 2018 Australia Dixon Product Catalog Exhibit

EX1006 - US20120255734A1 (Coli) Exhibit

EX1004 - US11549348 (Cicci) Exhibit

EX1051 - GTS Admiral Callaghan Exhibit

EX1048 - Jacobs-The Shale Evolution -Zipper Fracture Takes Hold Exhibit

EX1035 - A brochure of Solar Turbines Turbomachinery Systems for Oil and Ga Exhibit

EX1043 - Dixon History -First Commercial Hydraulic Fracturing Wells Drilled Exhibit

EX1058 - Langewis-1971-Practical Hydraulics of Positive Exhibit

EX1054 - MARC Record Exhibit

EX1003 - 11009162 File history part 3 Exhibit

EX1045 - Socket Weld Fittings Types and Applications Complete Specs Exhibit

Petitioners' Power of Attorney NOTICE

Petition for Inter Partes Review of U.S. Patent No. 11,009,162 PETITION

EX1046 - weld Meaning in the Cambridge English Dictionary Exhibit

EX1015 - Unlocking the Earth - A Short History of Hydraulic Fracturing Exhibit

EX1011 - ANSI-HI 6.1-6.5_BB excerpt Exhibit

EX1024 - Mutalik-Case history of sequential and Simultaneous Fracturing Exhibit

EX1028 - Casero-2008-Continuous Pumping, Multistage, Hydraulic Fracturing Exhibit