IP Library › Assignment 017289/0190
Patent Assignment
Reel/Frame 017289/0190

Assignment of Assignor's Interest

Recorded: 2005-11-28 Pages: 6
Assignors
HUGHES, WILLIAM JAMES
Executed: 2005-11-17
BRIGGS, GARY MARSHALL
Executed: 2005-11-23
Assignee
SUNSTONE CORPORATION
101 NORTH ROBINSON, SUITE #810, OKLAHOMA CITY, OKLAHOMA, 73102
Covered Property (1)
Method and Apparatus for Drilling Curved Boreholes
Patent: 7,373,995 →
Application: 11/287,912 →
Publication: US 2007/0119629
Related Assignments (4)
Other recorded transfers of the patent in this record — the chain of ownership.
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 →