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

Explore the PTAB proceeding IPR2025-00139 filed by Liberty Energy Inc. et al. on 2024-11-20. This includes filing dates, application numbers, tech centers, patent numbers, and current case status.

Proceeding Overview

Proceeding Number

IPR2025-00139

Filing Date

2024-11-20

Accorded Filing Date

2024-11-20

Institution Decision Date

2025-06-11

Last Modified Date

2026-03-24

Proceeding Type

IPR

Termination Date

2026-03-24

Trial Status

Terminated-Settled

Parties & Counsel

Petitioner

Liberty Energy Inc. et al.

Represented By

Walters, Chadet al

Patent Owner / Respondent

U.S. Well Services, LLC

Represented By

FERGUSON, BRIANet al

Tribunal & Venue

Tribunal

Patent Trial and Appeal Board (USPTO)

Technology Center

TC 3700 - Mechanical Engineering & Manufacturing

Patent Information

1 Patent Involved

Respondent Application Number 16597014

Respondent Patent Number 11208878

External Links

Espacenet

Google Patents

Respondent Inventor Jared Oehring et al

Respondent Tech Center TC 3700 - Mechanical Engineering & Manufacturing

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

113

Termination Decision: Post-DI Settlement TERMINATE

2026-03-24 FILING PARTY: BOARD

Download

Joint Motion to Terminate MOTION

2026-03-23 FILING PARTY: PETITIONER

Download

Joint Request to Keep Confidential MOTION

2026-03-23 FILING PARTY: PETITIONER

Download

Order: ORDER Canceling Oral Argument 37 C.F.R. §§ 42.5 & 42.70 ORDER

2026-03-05 FILING PARTY: BOARD

Download

3002

Ex. 3002 Exhibit

2026-03-04 FILING PARTY: BOARD

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

Proceeding Overview

Parties & Counsel

Petitioner

Liberty Energy Inc. et al.

Represented By

Patent Owner / Respondent

U.S. Well Services, LLC

Represented By

Tribunal & Venue

Patent Information

Address and Attorney/Agent Information

Power of Attorney & Correspondence

Attorney / Agent Information

Proceeding Documents

Termination Decision: Post-DI Settlement TERMINATE

Joint Motion to Terminate MOTION

Joint Request to Keep Confidential MOTION

Order: ORDER Canceling Oral Argument 37 C.F.R. §§ 42.5 & 42.70 ORDER

Ex. 3002 Exhibit

Patent Owner's Updated Power of Attorney NOTICE

Patent Owner's Updated Mandatory Notice NOTICE

ORDER Setting Oral Argument 37 C.F.R. § 42.70 ORDER

PATENT OWNER’S REQUEST FOR ORAL ARGUMENT OTHER

Petitioners' Request for Oral Argument OTHER

Patent Owner’s Updated Mandatory Notices NOTICE

Patent Owner's Power of Attorney (signed) NOTICE

PATENT OWNER’S SUR-REPLY BRIEF OTHER

EX1049 - Deposition Transcript of Nikolaou, Michael 120525 Exhibit

Petitioners' Reply to Patent Owner's Response. REPLYTOOPP

EX1050 - The American Heritage Dictionary 2012 - Module Exhibit

Petitioners' Notice of Deposition of Michael Nikolaou NOTICE

Patent Owner Request for to Submit New Requests for Director Review Denied Exhibit

EX-2010 - U.S. Pat. Pub. No. 2019/0203572 Exhibit

EX-2016 - Order Adopting Claim Construction Memorandum & Order, Case 4:24-cv-00839 Document 128, Filed 07/07/25 in TXSD Exhibit

EX-2015 - Memorandum And Order, Case 4:24-cv-00839 Document 111, Filed on 05/30/25 in TXSD Exhibit

EX-2011 - U.S. Pat. Pub. No. 2019/0003329 Exhibit

EX-2014 - C.V. of Dr. Michael Nikolaou Exhibit

Patent Owner Response '878 RESPONSE

EX-2012 - Deposition of Dr. Robert Durham Exhibit

EX-2013 - Declaration of Dr. Michael Nikolaou Exhibit

Petitioners' Updated Mandatory Notices NOTICE

General Order: Related Matters Updates ORDER

Patent Owner's Notice of Deposition of Dr. Durham NOTICE

Notice of Joint Stipulation to Modify Due Dates 1 and 2 NOTICE

Order Denying Director Review of Institution Decision REHEARING

Ex. 3101 IPR2025-00139 Patent Owner's request Denied Exhibit

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

Authorized Response to Director Review Request OTHER

Exhibit 3100 Exhibit

Patent Owner's Request for Director Review REQUEST

Institution Decision: DECISION Granting Institution of Inter Partes Review 35 U.S.C. § 314 DECISION

Order: SCHEDULING ORDER ORDER

Patent Owner's Updated Power of Attorney NOTICE

EX-2009 - Declaration of Richard Quarles ISO Motion for PHV Exhibit

Patent Owner's Unopposed Motion for Pro Hac Vice Admission of Richard Quarles MOTION

Patent Owner's Updated Mandatory Notices NOTICE

Petitioners' Updated Exhibit List NOTICE

EX1048 - USWS v. Liberty (SDTX) - Email Production and Schedule Exhibit

EX-2006 - Order Denying Stay Exhibit

EX-2007 - Joint Motion to Amend Patent Case Scheduling Order Exhibit

EX-2008 - Amended Patent Case Scheduling Order Exhibit

Patent Owner's Updated Exhibit List NOTICE

Patent Owner's Sur-Reply to Petitioners' Reply OTHER

EX1047 - Federal Court Management Statistics Exhibit

EX1046 - Notice of Hearing Exhibit

Petitioners' Reply to Patent Owner's Preliminary Response OTHER

EX1045 - Defendants' Motion to Stay Pending Inter Partes Review Exhibit

EX1044 - Guidance on USPTO's Recission Exhibit

Ex. 3001 Exhibit

EX-2004 - Petitioner's Invalidity Contentions Exhibit

EX-2003 - Patent Scheduling Order Dkt 30 Exhibit

EX-2002 - EnviroFrac - GRIZZLY Exhibit

EX-2005 - USPTO announcment rescinding memo Exhibit

EX-2001 - US9945365 Exhibit

Patent Owner's Preliminary Response POPR

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

PATENT OWNER’S MANDATORY NOTICES NOTICE

Patent Owner's Power of Attorney '878 NOTICE

Petitioners' Power of Attorney NOTICE