Patent Assignment
Reel/Frame 075022/0252
Release of Security Interest
Recorded: 2026-03-06
Pages: 15
Assignor
U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION
Executed: 2026-03-05
Assignees
NINE ENERGY SERVICE, INC.
2001 KIRBY DRIVE, SUITE 200, HOUSTON, TEXAS, 77019
NINE DOWNHOLE TECHNOLOGIES, LLC
2001 KIRBY DRIVE, SUITE 200, HOUSTON, TEXAS, 77019
Covered Properties
(68)
Shearable Sleeve
Systems and Methods for Plugging an Oil Well
Application:
17/648,912 →
Publication:
US 2022/0235623
Multi-Cycle Counter System
Compact Downhole Tool
Downhole Assembly for Selectively Sealing Off a Wellbore
Application:
17/410,763 →
Publication:
US 2021/0381337
Gas Capable Frangible Disc Barrier Valve
Cup Plug Having a Large Flow-Through Inside Diameter
Plugging Device
Retrievable Downhole Tool
Patent:
10,400,535 →
Application:
15/898,067 →
Downhole Apparatus with Packer Cup and Slip
Downhole Apparatus with Packer Cup and Slip
Downhole Tool Apparatus with Slip Plate and Wedge
Retrievable Downhole Tool
Downhole Apparatus with Packer Cup and Slip
Cup Plug Having a Large Flow-Through Inside Diameter
Filament-Reinforced Composite Material with Load-Aligned Filament Windings
Compact Downhole Tool
Cup Plug Having a Large Flow-Through Inside Diameter
Sleeve for Downhole Tools
Plugging Device
Lower Set Insert with Lower Ball Seat for a Downhole Plug
Patent:
703,698 →
Application:
29/469,576 →
Downhole Perforation Tool
Bottom Set Downhole Plug
Configurable Inserts for Downhole Plugs
Decomposable Pumpdown Ball for Downhole Plugs
Hydraulicaly Fracturable Downhole Valve Assembly and Method for Using Same
High-Molecular-Weight Polyglycolides for Hydrocarbon Recovery
Isolation Tool
Bottom Set Downhole Plug
Settable Well Tool and Method
Down Hole Tool Having Improved Segmented Back Up Ring
Downhole Tools Having Non-Toxic Degradable Elements and Methods of Using the Same
Downhole Tools Having Non-Toxic Degradable Elements
Downhole Tools Having Non-Toxic Degradable and Their Methods of Use
Configurable Insert for a Downhole Tool
Patent:
657,807 →
Application:
29/398,397 →
Configurable Bridge Plug Insert for a Downhole Tool
Patent:
672,794 →
Application:
29/398,385 →
Long Range Composite Downhole Plug
Patent:
673,182 →
Application:
29/398,371 →
Compact Composite Downhole Plug
Patent:
673,183 →
Application:
29/398,376 →
Configurable Caged Ball Insert for a Downhole Tool
Patent:
684,612 →
Application:
29/398,388 →
Configurable Insert for a Downhole Plug
Patent:
694,280 →
Application:
29/398,384 →
Lower Set Insert with a Lower Ball Seat for a Downhole Plug
Patent:
694,281 →
Application:
29/398,398 →
Lower Set Insert for a Downhole Plug for Use in a Wellbore
Patent:
694,282 →
Application:
29/441,568 →
Lower Set Insert for a Downhole Plug for Use in a Wellbore
Patent:
697,088 →
Application:
29/398,390 →
Lower Set Caged Ball Insert for a Downhole Plug
Patent:
698,370 →
Application:
29/398,393 →
Configurable Caged Ball Insert for a Downhole Tool
Patent:
703,713 →
Application:
29/433,288 →
Configurable Insert for a Downhole Plug
Patent:
705,821 →
Application:
29/445,834 →
Configurable Bridge Plugs and Methods for Using Same
Decomposable Impediments for Downhole Tools and Methods for Using Same
Configurable Downhole Tools and Methods for Using Same
Decomposable Impediments for Downhole Plugs
Dissolvable Downhole Tools Comprising Both Degradable Polymer Acid and Degradable Metal Alloy Elements
Downhole Plug Having Dissolvable Metallic and Dissolvable Acid Polymer Elements
Electrically Powered Setting Tool and Perforating Gun
Downhole Tools Having Non-Toxic Degradable Elements
Plug of Extended Reach
Downhole Assembly for Selectively Sealing Off a Wellbore
Interventionless Frangible Disk Isolation Tool
Interventionless Frangible Disk Isolation Tool
Downhole Assembly for Selectively Sealing Off a Wellbore
Extended Reach Plug
Downhole Valve Assembly
Bottom Set Downhole Plug
Downhole Perforation Tool and Method of Subsurface Fracturing
Configurable Inserts for Downhole Plugs
Hydrostatic Setting Tool
Settable Well Tool Method
Split Ring Sealing Assemblies
Downhole Assembly for Selectively Sealing Off a Wellbore
Related Assignments
(25)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignor's Interest
Mar 7, 2017
From: GREENLEE, DONALD ROY; GREENLEE, PATRICIA GAIL; GREENLEE, DONALD JONATHAN
To: PAT GREENLEE BUILDERS, LLC
Reel/Frame 041483/0091 →
Assignment of Assignor's Interest
Mar 7, 2017
From: PAT GREENLEE BUILDERS, LLC
To: NINE DOWNHOLE TECHNOLOGIES, LLC
Reel/Frame 041483/0817 →
Assignment of Assignor's Interest
May 16, 2018
From: GREENLEE, DONALD ROY; GREENLEE, DONALD JONATHAN
To: NINE DOWNHOLE TECHNOLOGIES, LLC
Reel/Frame 045825/0360 →
Assignment of Assignor's Interest
May 16, 2018
From: GREENLEE, DONALD ROY; GREENLEE, DONALD JONATHAN; GREENLEE, PATRICIA GAIL
To: PAT GREENLEE BUILDERS, LLC
Reel/Frame 045823/0001 →
Assignment of Assignor's Interest
May 16, 2018
From: PAT GREENLEE BUILDERS, LLC
To: NINE DOWN TECHNOLOGIES, LLC
Reel/Frame 045823/0166 →
Assignment of Assignor's Interest
Nov 9, 2018
From: GREENLEE, DONALD ROY; GREENLEE, DONALD JONATHAN; OLIGSCHLAEGER, BRIAN DAVID
To: NINE DOWNHOLE TECHNOLOGIES, LLC
Reel/Frame 047466/0093 →
Assignment of Assignor's Interest
Jan 28, 2020
From: FRAZIER, W LYNN; BAILEY, STEVEN; ABT, RONALD
To: MAGNUM OIL TOOLS INTERNATIONAL LTD.
Reel/Frame 051639/0047 →
Assignment of Assignor's Interest
Nov 4, 2021
From: MAGNUM OIL TOOLS INTERNATIONAL, LTD.
To: NINE DOWNHOLE TECHNOLOGIES, LLC
Reel/Frame 058025/0914 →
Assignment of Assignor's Interest
Feb 21, 2022
From: GREENLEE, DONALD ROY; GREENLEE, DONALD JONATHAN
To: NINE DOWNHOLE TECHNOLOGIES, LLC
Reel/Frame 059056/0580 →
Assignment of Assignor's Interest
Mar 25, 2022
From: GREENLEE, DONALD ROY; GREENLEE, DONALD JONATHAN
To: NINE DOWNHOLE TECHNOLOGIES, LLC
Reel/Frame 059399/0773 →
Assignment of Assignor's Interest
Apr 20, 2022
From: BRANDSDAL, VIGGO
To: NINE DOWNHOLE TECHNOLOGIES, LLC
Reel/Frame 059647/0947 →
Assignment of Assignor's Interest
Jul 29, 2022
From: GREENLEE, DONALD ROY; GREENLEE, DONALD JONATHAN
To: NINE DOWNHOLE TECHNOLOGIES, LLC
Reel/Frame 060674/0046 →
Assignment of Assignor's Interest
Aug 3, 2022
From: BRANDSDAL, VIGGO; AASHEIM, GEIR VALESTRAND
To: NINE DOWNHOLE TECHNOLOGIES, LLC
Reel/Frame 060708/0370 →
Assignment of Assignor's Interest
Aug 9, 2022
From: BRANDSDAL, VIGGO; AASHEIM, GEIR VALESTRAND
To: NINE DOWNHOLE TECHNOLOGIES, LLC
Reel/Frame 060760/0240 →
Assignment of Assignor's Interest
Aug 11, 2022
From: GREENLEE, DONALD ROY; GREENLEE, DONALD JONATHAN
To: NINE DOWNHOLE TECHNOLOGIES, LLC
Reel/Frame 060781/0717 →
Assignment of Assignor's Interest
Aug 17, 2022
From: GREENLEE, DONALD ROY; GREENLEE, DONALD JONATHAN
To: NINE DOWNHOLE TECHNOLOGIES, LLC
Reel/Frame 060834/0756 →
Assignment of Assignor's Interest
Aug 17, 2022
From: GREENLEE, DONALD ROY; GREENLEE, DONALD JONATHAN
To: NINE DOWNHOLE TECHNOLOGIES, LLC
Reel/Frame 060834/0521 →
Assignment of Assignor's Interest
Jan 3, 2023
From: NINE ENERGY SERVICE, INC.
To: NINE DOWNHOLE TECHNOLOGIES, LLC
Reel/Frame 062256/0939 →
Corrective Assignment to Correct the Assignee Name Previously Recorded on Reel 045823 Frame 0166. Assignor(S) Hereby Confirms the Assignment.
Jan 12, 2023
From: PAT GREENLEE BUILDERS, LLC
To: NINE DOWNHOLE TECHNOLOGIES, LLC
Reel/Frame 062379/0787 →
Assignment of Assignor's Interest
Jan 17, 2023
From: BRANDSDAL, VIGGO; AASHEIM, GEIR VALESTRAND
To: NINE DOWNHOLE TECHNOLOGIES, LLC
Reel/Frame 062395/0916 →
Patent Security Agreement (Notes)
Jan 30, 2023
From: NINE ENERGY SERVICE, INC.; NINE DOWNHOLE TECHNOLOGIES, LLC; MAGNUM OIL TOOLS INTERNATIONAL, LTD.
To: U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 062545/0970 →
Patent Security Agreement (Abl)
Jan 30, 2023
From: NINE ENERGY SERVICE, INC.; NINE DOWNHOLE TECHNOLOGIES, LLC; MAGNUM OIL TOOLS INTERNATIONAL, LTD.
To: JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT
Reel/Frame 062546/0076 →
Security Interest
May 1, 2025
From: NINE ENERGY SERVICE, INC.; NINE DOWNHOLE TECHNOLOGIES, LLC; NINE ENERGY CANADA INC.
To: WHITE OAK COMMERCIAL FINANCE, LLC
Reel/Frame 071147/0203 →
Release of Security Interest
May 2, 2025
From: JPMORGAN CHASE BANK, N.A.
To: NINE ENERGY SERVICE, INC.; NINE DOWNHOLE TECHNOLOGIES, LLC; MAGNUM OIL TOOLS INTERNATIONAL LTD.
Reel/Frame 071155/0559 →
Release of Security Interest
Mar 6, 2026
From: WHITE OAK COMMERCIAL FINANCE, LLC
To: NINE ENERGY SERVICE, INC.; NINE DOWNHOLE TECHNOLOGIES, LLC
Reel/Frame 075022/0210 →