Patent Assignment
Reel/Frame 006621/0802
Assignment of Assignor's Interest
Recorded: 1993-07-23
Pages: 2
Assignor
PHILLIPS, MICHAEL C.
Executed: 1993-03-09
Assignee
SHELL OIL COMPANY
900 LOUISIANA, P.O. BOX 2463, HOUSTON, TEXAS, 77252-2463
Covered Property
(1)
Process and Apparatus for Removal of Carbonaceous Materials from Particles Containing Such Materials
Patent:
5,251,565 →
Application:
07/855,822 →
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignors Interest.
Mar 15, 1993
From: ALLERGAN, INC.
To: PILKINGTON VISIONCARE, INC.
Reel/Frame 006457/0539 →
Correct Assignor to Assignee
Feb 20, 1996
From: PILKINGTON VISIONCARE, INC.
To: ALLERGAN, INC.
Reel/Frame 007795/0524 →
Correction of Recordation Error
Oct 21, 1996
From: ALLERGAN, INC.
To: PTLKINGTON VISIONCARE, INC. A DELAWARE CORPORATION
Reel/Frame 008200/0375 →