Patent Assignment
Reel/Frame 006344/0261
Assignment of Assignors Interest.
Recorded: 1992-12-14
Pages: 2
Assignors
VINEGAR, HAROLD J.
Executed: 1990-12-05
STEGEMEIER, GEORGE L.
Executed: 1992-12-05
DE ROUFFIGNAC, ERIC PIERRE
Executed: 1990-12-05
CHOU, CHARLES CHI-SU
Executed: 1990-12-06
Assignee
SHELL OIL COMPANY
900 LOUISIANA, POST OFFICE BOX 2463, HOUSTON, TEXAS, 77252-2463
Covered Property
(1)
Vacuum Method for Removing Soil Contaminants Utilizing Thermal Conduction Heating
Patent:
5,190,405 →
Application:
07/627,479 →
Related Assignments
(1)
Other recorded transfers of the patent in this record — the chain of ownership.