IP Library › Assignment 005867/0074
Patent Assignment
Reel/Frame 005867/0074

Assignment of Assignors Interest.

Recorded: 1991-09-27 Pages: 800
Assignors
SCHUTZ, ALAIN A.
Executed: 1991-09-24
CULLO, LEONARD A.
Executed: 1991-09-24
Assignee
ARISTECH CHEMICAL CORPORATION
A CORPORATION OF DELAWARE, DELAWARE
Covered Property (1)
Process for Making Efficient Anionic Clay Catalyst, Catalysts Made Thereby, and Method of Making Isophorone
Patent: 5,153,156 →
Application: 07/766,938 →
Related Assignments (3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignors Interest. Sep 27, 1991
From: SCHUTZ, ALAIN A.; CULLO, LEONARD A.
To: ARISTECH CHEMICAL CORPORATION
Reel/Frame 005867/0748 →
Assignment of Assignor's Interest Mar 5, 2002
From: ARISTECH CHEMICAL CORPORATION
To: SUNOCO, INC. (R&M)
Reel/Frame 012665/0008 →
Assignment of Assignor's Interest Jul 1, 2004
From: SUNOCO, INC.
To: INTERCAT, INC.
Reel/Frame 014805/0430 →