Patent Assignment
Reel/Frame 019916/0768
Assignment of Assignor's Interest
Recorded: 2007-10-03
Pages: 3
Assignor
PURKIS, DANIEL
Executed: 2007-05-15
Assignee
PETROWELL LIMITED
KIRKTON AVENUE, PITMEDDEN ROAD INDUSTRIAL ESTATE, DYCE, ABERDEEN, AB21 0BF, UNITED KINGDOM
Covered Property
(1)
Plug
Related Assignments
(7)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Aug 9, 2017
From: PETROWELL, LTD.
To: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
Reel/Frame 043506/0292 →
Assignment of Assignor's Interest
Aug 30, 2017
From: PETROWELL LTD.
To: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
Reel/Frame 043722/0898 →
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 →
Patent Security Interest Assignment Agreement
Apr 26, 2023
From: DEUTSCHE BANK TRUST COMPANY AMERICAS
To: WELLS FARGO BANK, NATIONAL ASSOCIATION
Reel/Frame 063470/0629 →