Patent Assignment
Reel/Frame 022109/0173
Assignment of Assignor's Interest
Recorded: 2009-01-15
Pages: 2
Assignor
DUNBAR, MARK
Executed: 2004-02-24
Assignee
SUNSTONE CORPORATION
101 NORTH ROBINSON, SUITE 810, OKLAHOMA CITY, OKLAHOMA, 73102
Covered Property
(1)
Method for Producing Nitrogen to Use in Under Balanced Drilling, Secondary Recovery Production Operations and Pipeline Maintenance
Related Assignments
(5)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Feb 25, 2004
From: HUGHES, W. JAMES
To: SUNSTONE CORPORATION
Reel/Frame 015020/0189 →
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 →