Liberty Energy Inc. et al. vs. U.S. WELL SERVICES, LLC et al.

Explore the PTAB proceeding IPR2025-00066 filed by Liberty Energy Inc. et al. on 2024-10-31. This includes filing dates, application numbers, tech centers, patent numbers, and current case status.

Proceeding Overview

Proceeding Number

IPR2025-00066

Filing Date

2024-10-31

Accorded Filing Date

2024-10-31

Institution Decision Date

2025-04-29

Last Modified Date

2025-09-29

Proceeding Type

IPR

Termination Date

2025-04-29

Trial Status

Institution Denied

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 16210807

Respondent Patent Number 10598258

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

13 Registered Practitioners

Power of Attorney & Correspondence

Firm / Entity Name Hogan Lovells Cadwalader US LLP

Customer Number 132858

Address 609 Main Street, Suite 4200, Houston, TX, 77002, UNITED STATES

Attorney / Agent Information

Reg #	Name	Phone
40357	Celine Crowson	202-637-5600
46089	Melissa Schwaller	713-632-1449
48163	Jason Lohr	415-374-2300
57025	Kristin Connarn	617-535-4000
60506	Taylor Evans	713-632-1400
65250	Helen Trac	248-495-0021
66218	Joseph Raffetto	+1 970 778 4063
68385	Scott Hughes	202-637-3659
70017	Corey Leggett	303-899-7300
70816	Sanjiva Reddy	212-918-3209
71636	Polly Sims	713-632-1400
72224	Joe Grdinovac	713-632-1400
78533	Connor Day	713-632-1418

Proceeding Documents

100

Notice: refund approved NOTICE

2025-09-29 FILING PARTY: BOARD

Download

Petitioners' Request for Refund of Post-Institution Fees OTHER

2025-09-26 FILING PARTY: PETITIONER

Download

Institution Decision: Deny DECISION

2025-04-29 FILING PARTY: BOARD

Download

2025

EX-2025 - USPTO announcment rescinding memo Exhibit

2025-04-11 FILING PARTY: PATENT OWNER

Download

2027

EX-2027 - 2025-04-01, Dkt. 84, Markman Hearing set for 2025.04.30 Exhibit

2025-04-11 FILING PARTY: PATENT OWNER

Download

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

Notice: refund approved NOTICE

Petitioners' Request for Refund of Post-Institution Fees OTHER

Institution Decision: Deny DECISION

EX-2025 - USPTO announcment rescinding memo Exhibit

EX-2027 - 2025-04-01, Dkt. 84, Markman Hearing set for 2025.04.30 Exhibit

EX-2026 -IPR2025-00105 (533 Patent) - Order Dismissing Petition as Prematurely Filed Exhibit

EX-2028 - PTAB-IPR2025-00778, Petition Exhibit

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

1054 - Plaintiff Opening Claim Construction Brief Exhibit

1051 - Motion to Stay Exhibit

1052 - Email re Markman Hearing Exhibit

1053-Federal Court Management Statistics Exhibit

1055 - Chambers Dec Ex A to Plaintiff Opening Claim Construction Brief Exhibit

Petitioners' Reply to Patent Owner's Preliminary Response OTHER

1056 - Guidance on USPTO's Recission Exhibit

EX-2016 - MECE_4331_Design_of_Machine_Elements_Spring_2025_Syllabus Exhibit

EX-2020 - Best-Practice Gearbox Lubrication _ Gear Solutions Magazine Exhibit

EX-2018 - ITAMCO Next Generation Gear Manufacturing Exhibit

EX-2001 - McGraw-Hill Gear Handbook (Dudley) Exhibit

EX-2008 - proconpump (New Smyrna Beach)_ Gear Design Engineer Exhibit

EX-2004 - Member List – American Gear Manufacturers Association Exhibit

EX-2012 - Gears and Gears Drives Exhibit

EX-2009 - CGI Job Listing Mechanical Engineer-Gear Design and Automation Exhibit

EX-2017 - Power Engineering & MFG. Custom Gear Boxes for heavy industrial use Exhibit

EX-2011 - PTO Classification Definition Class 475 Exhibit

EX-2013 - Houston - EE course requirements Exhibit

EX-2019 - Petitioner's Invalidity Contentions Exhibit

Patent Owner's Preliminary Response POPR

EX-2005 - United Gears Website Exhibit

EX-2014 - Houston - PE course requirements Exhibit

EX-2022 - Fatigue failure of a helical gear in a gearbox Exhibit

EX-2021 - Durham Decl re 533 patent Exhibit

EX-2007 - Gear Design Engineer What is it and how to become one Zip Recruiter Exhibit

EX-2024 - Nikolaou Declaration ISO POPR Exhibit

EX-2015 - Houston - ME course requirements Exhibit

EX-2010 - Gear Design Engineer American Axle & Manufacturing-AAM _ JobzMall Exhibit

EX-2006 - Patent Scheduling Order Dkt 30 Exhibit

EX-2002 - Lynwander - Gear Drive Systems Exhibit

EX-2003 - About AGMA – American Gear Manufacturers Association Exhibit

EX-2023 - Nikolaou CV Exhibit

PATENT OWNER’S MANDATORY NOTICES NOTICE

Patent Owner's Power of Attorney '258 NOTICE

ERRATA NOTICE

Notice: Notice filing date accorded NOTICE

1016 - GD2500Q Op & Service Manual Exhibit

1014 - Part 3-Nesbitt-2006-Handbook of pumps and pumping Exhibit

1022 - Mabie Mechanisms and Dynamics of Machinery Pages Exhibit

1019 - Marks Handbook Exhibit

1010 - Certified Translation of CN103742382A Yi English Exhibit

1047 - Sanborn Exhibit

1045 - Bourgoyne Exhibit

1027 - US3186222 Martin Exhibit

1014 - Part 4-Nesbitt-2006-Handbook of pumps and pumping Exhibit

1024 - Fink pt1 Exhibit

1005 - 62562943 Buckley Provisional Exhibit

1032 - DeWinter-1989-The application of a 3500 HP Variable Frequency Drive Exhibit

1026 - Roethemeyer-1995-Evolution of motor Exhibit

1018 - MW Quintuple 2.2.2017 Exhibit

1011 - MW Pinion 8.17.2017 Exhibit

1028 - US3075136 Jones Exhibit

1003 - Declaration of Robert Durham Exhibit

1036 - Baseer-Digital Signal Processing Processor Exhibit

1043 - Wells Exhibit

1013 - Tutterow-2004-Variable speed pumping Exhibit

1044 - Montgomery Exhibit