Patent Assignment
Reel/Frame 043331/0330
Assignment of Assignor's Interest
Recorded: 2017-08-18
Pages: 15
Assignor
LUBRIZOL OILFIELD SOLUTIONS, INC.
Executed: 2017-04-06
Assignee
WEATHERFORD TECHNOLOGY HOLDINGS, LLC
2000 ST JAMES PLACE, HOUSTON, TEXAS, 77056
Covered Properties
(10)
Shale Inhibition Additive for Oil/Gas Down Hole Fluids and Methods for Making and Using Same
Corrosion inhibitor systems for low, moderate and high temperature fluids and methods for making and using same
Foamed Fluid Additive for Underbalance Drilling
Oil Based Concentrated Slurries and Methods for Making and Using Same
Shale Inhibition Additive for Oil/Gas Down Hole Fluids and Methods for Making and Using Same
Apparatus, Compositions, and Methods of Breaking Fracturing Fluids
Enhanced Oil-Based Foam Drilling Fluid Compositions and Method for Making and Using Same
Apparatus, Compositions, and Methods of Breaking Fracturing Fluids
Novel Strontium Carbonate Bridging Materials and Methods for Making and Using Same
Oil Based Concentrated Slurries and Methods for Making and Using Same
Related Assignments
(9)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignor's Interest
Jul 15, 2015
From: KAKADJIAN, SARKIS R.; THOMPSON, JOSEPH E., SR
To: CLEARWATER INTERNATIONAL LLC
Reel/Frame 036099/0411 →
Assignment of Assignor's Interest
Oct 9, 2015
From: CLEARWATER INTERNATIONAL, L.L.C.
To: LUBRIZOL OILFIELD SOLUTIONS, INC.
Reel/Frame 036822/0379 →
Security Interest
Dec 18, 2019
From: WEATHERFORD TECHNOLOGY HOLDINGS LLC; WEATHERFORD NETHERLANDS B.V.; WEATHERFORD NORGE AS; HIGH PRESSURE INTEGRITY INC.
To: WELLS FARGO BANK NATIONAL ASSOCIATION AS AGENT
Reel/Frame 051891/0089 →
Security Interest
Dec 26, 2019
From: WEATHERFORD TECHNOLOGY HOLDINGS, LLC; WEATHERFORD NETHERLANDS B.V.; WEATHERFORD NORGE AS; HIGH PRESSURE INTEGRITY, INC.
To: DEUTSCHE BANK TRUST COMPANY AMERICAS, AS ADMINISTRATIVE AGENT
Reel/Frame 051419/0140 →
Security Interest
Aug 28, 2020
From: WEATHERFORD TECHNOLOGY HOLDINGS, LLC; WEATHERFORD NETHERLANDS B.V.; WEATHERFORD NORGE AS; HIGH PRESSURE INTEGRITY, INC.
To: WILMINGTON TRUST, NATIONAL ASSOCIATION
Reel/Frame 054288/0302 →
Release of Security Interest
Aug 28, 2020
From: WELLS FARGO BANK, NATIONAL ASSOCIATION
To: WEATHERFORD TECHNOLOGY HOLDINGS, LLC; WEATHERFORD NETHERLANDS B.V.; WEATHERFORD NORGE AS; HIGH PRESSURE INTEGRITY, INC.
Reel/Frame 053838/0323 →
Security Interest
Oct 1, 2021
From: WEATHERFORD TECHNOLOGY HOLDINGS, LLC; WEATHERFORD NETHERLANDS B.V.; WEATHERFORD NORGE AS; HIGH PRESSURE INTEGRITY, INC.
To: WILMINGTON TRUST, NATIONAL ASSOCIATION
Reel/Frame 057683/0706 →
Release of Security Interest
Oct 1, 2021
From: WILMINGTON TRUST, NATIONAL ASSOCIATION
To: WEATHERFORD TECHNOLOGY HOLDINGS, LLC; WEATHERFORD NETHERLANDS B.V.; WEATHERFORD NORGE AS; HIGH PRESSURE INTEGRITY, INC.
Reel/Frame 057683/0423 →
Patent Security Interest Assignment Agreement
Apr 26, 2023
From: DEUTSCHE BANK TRUST COMPANY AMERICAS
To: WELLS FARGO BANK, NATIONAL ASSOCIATION
Reel/Frame 063470/0629 →