Patent Assignment
Reel/Frame 023873/0319
Assignment of Assignor's Interest
Recorded: 2010-01-29
Pages: 6
Assignors
HUGHES, WILLIAM JAMES
Executed: 2010-01-27
LANE, BRYAN
Executed: 2010-01-27
BRIGGS, GARY MARSHALL
Executed: 2010-01-27
Assignee
SUNSTONE TECHNOLOGIES, LLC
101 N. ROBINSON, SUITE 800, OKLAHOMA CITY, OKLAHOMA, 73102
Covered Property
(1)
Tapered Spline Connection for Drill Pipe, Casing, and Tubing
Application:
12/695,569 →
Publication:
US 2011/0180273
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
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 →