Patent Assignment
Reel/Frame 006697/0559
Assignment of Assignor's Interest
Recorded: 1993-09-17
Pages: 3
Assignors
JOHNSON, PAUL C.
Executed: 1992-09-10
WEINGAERTNER, DAVID A.
Executed: 1992-09-25
DICKS, LYNTON W. R.
Executed: 1992-09-10
OTERMAT, ARTHUR L.
Executed: 1992-09-10
MARSEN, ARNOLD R. JR.
Executed: 1992-09-21
Assignee
SHELL OIL COMPANY
P.O. BOX 2463 900 LOUISIANA, HOUSTON, TEXAS, 77252-2463
Covered Property
(1)
Enhanced Deep Soil Vapor Extraction Process and Apparatus for Removing Contaminants Trapped in or Below the Water Table
Patent:
5,271,693 →
Application:
07/958,844 →
Related Assignments
(1)
Other recorded transfers of the patent in this record — the chain of ownership.