Patent Assignment
Reel/Frame 035344/0697
Assignment of Assignor's Interest
Recorded: 2015-04-07
Pages: 7
Assignors
MILLER, MARK
Executed: 2015-03-30
MACDONALD, CRAIG
Executed: 2015-04-06
DOAN, MICHAEL
Executed: 2015-03-30
Assignee
SHAREWELL ENERGY SERVICES, LLC
15151 SOMMERMEYER STREET, HOUSTON, TEXAS, 77041
Covered Properties
(2)
Isolation Ring on Gap Sub
Application:
61/683,271 →
Isolation Ring on Gap Sub
Application:
61/781,617 →
Related Assignments
(9)
Other recorded transfers of the patents 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
Oct 19, 2012
From: DOAN, MICHAEL
To: SHAREWELL ENERGY SERVICES, LLC
Reel/Frame 029162/0157 →
Assignment of Assignor's Interest
Apr 2, 2013
From: MACDONALD, CRAIG
To: SHAREWELL ENERGY SERVICES, LLC
Reel/Frame 030132/0939 →
Assignment of Assignor's Interest
Apr 2, 2013
From: MILLER, MARK
To: SHAREWELL ENERGY SERVICES, LLC
Reel/Frame 030132/0977 →
Assignment of Assignor's Interest
Apr 2, 2013
From: DOAN, MICHAEL
To: SHAREWELL ENERGY SERVICES, LLC
Reel/Frame 030133/0047 →
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 →