Patent Assignment
Reel/Frame 009590/0547
Assignment of Assignor's Interest
Recorded: 1998-11-11
Pages: 2
Assignors
HERWIG, JURGEN DR.
Executed: 1998-07-30
FISCHER, RICHARD WALTER DR.
Executed: 1998-08-21
ALEXANDER, HEINZ
Executed: 1998-09-04
ZIMMERMANN, BURKHARD
Executed: 1998-08-06
BELLER, MATTHIAS DR.
Executed: 1998-08-03
Assignee
HOECHST RESEARCH & TECHNOLOGY DEUTSCLAND GMBH & CO. KG
D-65926 FRANKFURT AM MAIN, GERMANY
Covered Property
(1)
Single-Stage Process for the Preparation of Amines
Patent:
6,025,524 →
Application:
09/138,718 →
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Change of Name
Mar 6, 2000
From: HOECHST RESEARCH & TECHNOLOGY GMBH & CO. KG
To: AVENTIS RESEARCH & TECHNOLOGIES GMBH & CO. KG
Reel/Frame 010658/0945 →
Assignment of Assignor's Interest
Mar 6, 2000
From: AVENTIS RESEARCH TECHNOLOGIES GMBH & CO. KG
To: CELANESE GMBH
Reel/Frame 010658/0961 →
Change of Name
Jan 5, 2001
From: CELANESE GMBH
To: CELANESE CHEMICALS EUROPE GMBH
Reel/Frame 011751/0712 →