IP Library Assignment 016994/0411
Patent Assignment
Reel/Frame 016994/0411

Assignment of Assignor's Interest

Recorded: 2005-09-16 Pages: 5
Assignors
HAGEN, TORSTEN
Executed: 2005-07-23
KOCH, DANIEL
Executed: 2005-08-02
PIRKL, HANS-GEORG
Executed: 2005-08-02
POHL, FRITZ
Executed: 2005-08-15
WERSHOFEN, STEFAN
Executed: 2005-08-25
UCHDORF, RUDOLF
Executed: 2005-07-08
ADAMSON, RICHARD
Executed: 2005-08-08
Assignee
BAYER MATERIALSCIENCE AG
51368 LEVERKUSEN, GERMANY
Covered Property (1)
Process for the Preparation of Polyamines of the Diphenylmethane Series at a Low Degree of Protonation
Patent: 7,253,321 →
Application: 11/170,624 →
Publication: US 2006/0287555
Related Assignments (1)
Other recorded transfers of the patent in this record — the chain of ownership.
Change of Name Apr 5, 2016
From: BAYER MATERIALSCIENCE AG
To: COVESTRO DEUTSCHLAND AG
Reel/Frame 038353/0325 →