IP Library › Assignment 042447/0001
Patent Assignment
Reel/Frame 042447/0001

Assignment of Assignor's Interest

Recorded: 2017-05-11 Pages: 41
Assignor
PETROWELL LIMITED
Executed: 2017-03-27
Assignee
WEATHERFORD TECHNOLOGY HOLDINGS, LLC
2000 ST. JAMES PLACE, HOUSTON, TEXAS, 77056
Covered Properties (6)
Antenna for Use in a Downhole Tubular
Application: 14/308,336 →
Publication: US 2014/0306853
Method and Apparatus for Actuating Downhole Tools
Application: 14/654,106 →
Publication: US 2015/0369006
Switching Device for, and a Method of Switching, a Downhole Tool
Patent: 9,631,458 →
Application: 14/802,402 →
Publication: US 2015/0322748
Choke
Application: 14/896,568 →
Publication: US 2016/0123112
Switching Device for, and a Method of Switching, a Downhole Tool
Application: 15/426,512 →
Publication: US 2017/0145791
Method and Apparatus for Controlling a Downhole Tool
Application: 15/505,538 →
Publication: US 2017/0254195
Related Assignments (16)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignor's Interest Jun 19, 2014
From: PURKIS, DANIEL; MACLEOD, IAIN MORRISON
To: PETROWELL LIMITED
Reel/Frame 033136/0549 →
Assignment of Assignor's Interest Jul 21, 2015
From: PURKIS, DANIEL
To: PETROWELL LIMITED
Reel/Frame 036141/0401 →
Change of Address Jul 23, 2015
From: PETROWELL LIMITED
To: PETROWELL LIMITED
Reel/Frame 036192/0073 →
Assignment of Assignor's Interest Oct 9, 2015
From: PURKIS, DANIEL GEORGE; SMITH, PAUL LINCOLN; HARRALL, SIMON JOHN
To: PETROWELL LIMITED
Reel/Frame 036764/0853 →
Assignment of Assignor's Interest Dec 9, 2015
From: PURKIS, DANIEL
To: PETROWELL LIMITED
Reel/Frame 037246/0672 →
Assignment of Assignor's Interest Feb 7, 2017
From: PURKIS, DANIEL
To: PETROWELL LIMITED
Reel/Frame 041651/0092 →
Change of Address Feb 7, 2017
From: PETROWELL LIMITED
To: PETROWELL LIMITED
Reel/Frame 041651/0015 →
Assignment of Assignor's Interest Apr 26, 2017
From: KNIGHT, MATTHEW DAVID
To: PETROWELL LIMITED
Reel/Frame 042146/0138 →
Assignment of Assignor's Interest Aug 9, 2017
From: PETROWELL, LTD.
To: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
Reel/Frame 043506/0292 →
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 →
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 →
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 →
Patent Security Interest Assignment Agreement Apr 26, 2023
From: DEUTSCHE BANK TRUST COMPANY AMERICAS
To: WELLS FARGO BANK, NATIONAL ASSOCIATION
Reel/Frame 063470/0629 →