Patent Assignment
Reel/Frame 022117/0452
Assignment of Assignor's Interest
Recorded: 2009-01-16
Pages: 6
Assignor
HUGHES UBHD TOOL COMPANY
Executed: 2002-12-12
Assignee
SUNSTONE CORPORATION
101 NORTH ROBINSON, SUITE 810, OKLAHOMA CITY, OKLAHOMA, 73102
Covered Properties
(2)
Method and Apparatus for Aligning Drill Pipe and Tubing
Patent:
5,950,744 →
Application:
08/950,047 →
Method and Apparatus for Drilling a Planar Curved Borehole
Patent:
5,941,321 →
Application:
09/122,596 →
Related Assignments
(6)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignor's Interest
Jan 16, 2009
From: HUGHES, W. JAMES
To: HUGHES UBHD TOOL COMPANY, LLC
Reel/Frame 022117/0122 →
Assignment of Assignor's Interest
Jan 16, 2009
From: HUGHES, W. JAMES
To: HUGHES UBHD TOOL COMPANY
Reel/Frame 022117/0124 →
Assignment of Assignor's Interest
Jan 22, 2009
From: SUNSTONE CORPORATION
To: SUNSTONE TECHNOLOGIES, LLC
Reel/Frame 022137/0199 →
Security Agreement
Feb 19, 2014
From: SUNSTONE TECHNOLOGIES, LLC
To: SUNSTONE ENERGY GROUP, LLC
Reel/Frame 032276/0699 →
Amendment to Security Agreement
Feb 19, 2014
From: SUNSTONE TECHNOLOGIES, LLC
To: SUNSTONE ENERGY GROUP, LLC
Reel/Frame 032276/0771 →
Notice of Lender Name Change
Aug 18, 2017
From: SUNSTONE ENERGY GROUP, LLC
To: BLACK OAK ENERGY HOLDINGS, LLC
Reel/Frame 044102/0017 →