Patent Assignment
Reel/Frame 006059/0130
Assignment of Assignors Interest.
Recorded: 1992-04-01
Pages: 3
Assignor
PHILLIPS PETROLEUM COMPANY, A DE CORP.
Executed: 1992-04-01
Covered Property
(1)
Olefin Conversion Process
Patent:
4,436,949 →
Application:
06/420,970 →
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.