Patent Assignment
Reel/Frame 015712/0435
Assignment of Assignor's Interest
Recorded: 2004-08-19
Pages: 3
Assignor
HUGHES, WILLIAM JAMES
Executed: 2004-08-19
Assignee
SUNSTONE CORPORATION
101 NORTH ROBINSON, OKLAHOMA CITY, OKLAHOMA, 73102
Covered Property
(1)
Rotating Pressure Control Head
Related Assignments
(5)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Aug 19, 2004
From: RICHARDSON, MURL RAY
To: SUNSTONE CORPORATION
Reel/Frame 015712/0446 →
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 →