Patent Assignment
Reel/Frame 029162/0157
Assignment of Assignor's Interest
Recorded: 2012-10-19
Pages: 2
Assignor
DOAN, MICHAEL
Executed: 2012-09-19
Assignee
SHAREWELL ENERGY SERVICES, LLC
12200 WEST LITTLE YORK, HOUSTON, TEXAS, 77041
Covered Property
(1)
Isolation Ring on Gap Sub
Application:
61/683,271 →
Related Assignments
(6)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Oct 19, 2012
From: MACDONALD, CRAIG
To: SHAREWELL ENERGY SERVICES, LLC
Reel/Frame 029162/0007 →
Assignment of Assignor's Interest
Oct 19, 2012
From: MILLER, MARK L.
To: SHAREWELL ENERGY SERVICES, LLC
Reel/Frame 029162/0018 →
Assignment of Assignor's Interest
Apr 7, 2015
From: MILLER, MARK; MACDONALD, CRAIG; DOAN, MICHAEL
To: SHAREWELL ENERGY SERVICES, LLC
Reel/Frame 035344/0697 →
Security Interest
Sep 2, 2022
From: BLACK DIAMOND OILFIELD RENTALS LLC
To: CALLODINE COMMERCIAL FINANCE, LLC, AS ADMINISTRATIVE AGENT
Reel/Frame 061372/0012 →
Security Interest
Oct 10, 2022
From: BLACK DIAMOND OILFIELD RENTALS LLC
To: CALLODINE COMMERCIAL FINANCE, LLC, AS ADMINISTRATIVE AGENT
Reel/Frame 061629/0891 →
Security Interest
Jun 26, 2026
From: CALLODINE COMMERCIAL FINANCE, LLC, AS ADMINISTRATIVE AGENT
To: CALLODINE CREDIT MANAGEMENT, LLC, AS ADMINISTRATIVE AGENT
Reel/Frame 075831/0954 →