IP Library Assignment 004149/0664
Patent Assignment
Reel/Frame 004149/0664

Assignment of Assignors Interest.

Recorded: 1983-07-22 Pages: 1
Assignors
TAPPE, HORST
Executed: 1982-03-04
WILLE, HERBERT
Executed: 1982-03-04
Assignee
CASSELLA AKTIENGESELLSCHAFT A COMPANY OF GERMANY
FRANKFURT (MAIN)-FECHENHEIM, GERMANY
Covered Property (1)
4-Isopropyl-4 -Nitrobenzophenone and a Process for the Preparation of 4-Nitrobenzophenones Substituted in the 4-Position
Patent: 4,413,144 →
Application: 06/362,977 →
Related Assignments (1)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Jun 5, 2000
From: HOECHST AKTIENGESELLSCHAFT
To: CLARIANT GMBH
Reel/Frame 010881/0555 →