Patent Assignment
Reel/Frame 007203/0455
Assignment of Assignor's Interest
Recorded: 1994-11-14
Pages: 3
Assignor
HOECHST CELANESE CORPORATION
Executed: 1994-09-30
Assignee
UOP
25 EAST ALGONQUIN ROAD P.O. BOX 5017, DES PLAINES,, ILLINOIS
Covered Properties
(3)
Membrane Assembly for Fluid Separations-Disk
Patent:
4,613,436 →
Application:
06/666,830 →
Air Dried Cellulose Acetate Membranes
Patent:
4,855,048 →
Application:
07/150,265 →
Composite Gas Separation Membrane Having a Gutter Layer Comprising a Crosslinked Polar Phenyl-Containing - Organopolysiloxane, and Method for Making the Same
Patent:
5,286,280 →
Application:
07/999,449 →
Related Assignments
(8)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignors Interest.
Nov 28, 1984
From: WIGHT, WILLIAM W.; BECKER, RICHARD A.
To: SEPAREX CORPORATION
Reel/Frame 004331/0300 →
Assignment of Assignors Interest.
Jan 29, 1988
From: TANG, MAN-WING; KING, WILLIAM M.; WENSLEY, C. GLEN
To: AIR PRODUCTS AND CHEMICALS, INC.
Reel/Frame 004854/0058 →
Assignment of Assignors Interest.
Mar 29, 1993
From: CHIOU, JEFFREY J.
To: HOECHST CELANESE CORPORATION
Reel/Frame 006529/0413 →
Assignment of Assignor's Interest
Aug 1, 1994
From: AIR PRODUCTS AND CHEMICALS, INC.
To: HOECHST CELANESE CORPORATION
Reel/Frame 007089/0383 →
Assignment of Assignor's Interest
Sep 12, 1994
From: AIR PRODUCTS MEMBRANES, INC.
To: AIR PRODUCTS AND CHEMICALS, INC.
Reel/Frame 007189/0972 →
Assignment of Assignor's Interest
Sep 12, 1994
From: AIR PRODUCTS AND CHEMICALS, INC.
To: HOECHST CELANESE CORPORATION
Reel/Frame 007175/0829 →
Assignment of Assignor's Interest
Nov 7, 1994
From: SEPAREX CORPORATION
To: AIR PRODUCTS MEMBRANES, INC.
Reel/Frame 007194/0349 →
Merger (See Record for Details)
Nov 7, 1994
From: SEPMER, INC.; SEPAREX CORPORATION
To: SEPAREX CORPORATION
Reel/Frame 007197/0374 →