Patent Assignment
Reel/Frame 026469/0589
Assignment of Assignor's Interest
Recorded: 2011-06-21
Pages: 3
Assignor
BUTTS, RAYBURN C.
Executed: 2011-06-20
Assignee
BUTTS PROPERTIES, LTD.
2500 N. BIG SPRING, STE. 230, MIDLAND, TEXAS, 79705-6616
Covered Property
(1)
Two Step Nitrogen and Methane Separation Process
Application:
13/164,843 →
Publication:
US 2012/0324943
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.