Patent Assignment
Reel/Frame 004831/0908
Assignment of Assignors Interest.
Recorded: 1988-02-05
Pages: 1
Assignor
MILES, LEON H.
Executed: 1988-01-05
Assignee
ATLANTIC RICHFIELD COMPANY, A CORP. OF DE.
LOS ANGELES, CALIFORNIA
Covered Property
(1)
Cementing Oil and Gas Wells Using Converted Drilling Fluid
Patent:
4,883,125 →
Application:
07/131,878 →
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignors Interest.
Jan 4, 1988
From: WILSON, WILLIAM N.; MILES, LEON H.; BOYD, BRETT H.; CARPENTER, ROBERT B.
To: ATLANTIC RICNHFIELD COMPANY, LOS ANGELES, CA. A CORP. OF DE.
Reel/Frame 004816/0995 →
Assignment of Assignor's Interest
Dec 17, 2001
From: ATLANTIC RICHFIELD COMPANY
To: PHILLIPS PETROLEUM COMPANY
Reel/Frame 012333/0329 →