Patent Assignment
Reel/Frame 043265/0755
Assignment of Assignor's Interest
Recorded: 2017-08-11
Pages: 14
Assignor
LUBRIZOL OILFIELD SOLUTIONS, INC.
Executed: 2017-04-13
Assignee
WEATHERFORD TECHNOLOGY HOLDINGS, LLC
2000 ST JAMES PLACE, HOUSTON, TEXAS, 77056
Covered Properties
(19)
Treating Shale and Clay in Hydrocarbon Producing Formations with Combinations of Guar and Potassium Formate
Treating Shale and Clay in Hydrocarbon Producing Formations
Well Drilling Fluids
Novel foamer composition and methods for making and using same
Well Drilling Fluids
Well Drilling Fluids Having Clay Control Properties
Oxidative Systems for Breaking Polymer Viscosified Fluids
System and Method for Scale Inhibition
Compositions and Method for Breaking Hydraulic Fracturing Fluids
Complementary Surfactant Compositions and Methods for Making and Using Same
Novel Weight Materials for Use in Cement, Spacer and Drilling Fluids
Dry Polymer Mixing Process for Forming Gelled Fluids
Methods Using Well Drilling Fluids Having Clay Control Properties
Methods for Using Complementary Surfactant Compositions
Hydraulic Diversion Systems to Enhance Matrix Treatments and Methods for Using Same
Application:
14/257,782 →
Publication:
US 2014/0318793
Self-Degradable Hydraulic Diversion Systems and Methods for Making and Using Same
Methods for Making and Using Novel Foamer Compositions
Application:
14/661,251 →
Publication:
US 2015/0291874
Novel Weight Materials for Use in Cement, Spacer and Drilling Fluids
Application:
14/669,631 →
Publication:
US 2015/0299552
Winterizing Agents for Oil Base Polymer Slurries and Method for Making and Using Same
Application:
15/289,751 →
Publication:
US 2017/0137698
Related Assignments
(13)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignor's Interest
Jul 3, 2014
From: VIGDERMAN, LEONID; SAINI, RAJESH K.
To: CLEARWATER INTERNATIONAL LLC
Reel/Frame 033241/0176 →
Assignment of Assignor's Interest
Apr 6, 2015
From: POWELL, RONALD J.; ZAMORA, FRANK; KAKADJIAN, SARKIS R.
To: CLEARWATER INTERNATIONAL LLC
Reel/Frame 035340/0459 →
Assignment of Assignor's Interest
Oct 9, 2015
From: CLEARWATER INTERNATIONAL, L.L.C.
To: LUBRIZOL OILFIELD SOLUTIONS, INC.
Reel/Frame 036822/0379 →
Assignment of Assignor's Interest
Dec 15, 2015
From: SAINI, RAJESH K.; VIGDERMAN, LEONID
To: CLEARWATER INTERNATIONAL LLC
Reel/Frame 037290/0889 →
Assignment of Assignor's Interest
Aug 10, 2016
From: PARKER, WILEY L.
To: CLEARWATER INTERNATIONAL, LLC
Reel/Frame 039394/0854 →
Assignment of Assignor's Interest
May 15, 2017
From: DUNCAN, ANDREW; ZURITA, ALFREDO MENDEZ; SMITH, KERN L.; VAN PETEGEM, RONLAD
To: CLEARWATER INTERNATIONAL LLC
Reel/Frame 042377/0256 →
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 →