Patent Assignment
Reel/Frame 006835/0032
Assignment of Assignor's Interest
Recorded: 1993-12-22
Pages: 2
Assignee
HOECHST AKTIENGESELLSCHAFT
POSTFACH 13 01 60, D-4200 OBERHAUSEN 11, GERMANY
Covered Property
(1)
Copper Catalysts
Patent:
5,453,412 →
Application:
08/172,049 →
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Mar 18, 2001
From: HOECHST AG
To: IMPERIAL CHEMICAL INDUSTRIES, PLC
Reel/Frame 011620/0786 →
Assignment of Assignor's Interest
Apr 30, 2003
From: IMPERIAL CHEMICAL INDUSTRIES PLC
To: JOHNSON MATTHEY PLC
Reel/Frame 014027/0472 →
Assignment of Assignor's Interest
Apr 30, 2003
From: IMPERIAL CHEMICAL INDUSTRIES PLC
To: JOHNSON MATTHEY PLC
Reel/Frame 014051/0345 →