Patent Assignment
Reel/Frame 012620/0123
Assignment of Assignor's Interest
Recorded: 2002-02-12
Pages: 2
Assignors
HOFMANN, JORG
Executed: 2001-08-21
GUPTA, PRAMOD
Executed: 2001-09-25
DIETRICH, MANFRED
Executed: 2001-09-19
Assignee
BAYER AKTIENGESELLSCHAFT
D-51368 LEVERKUSEN, GERMANY
Covered Property
(1)
Long-Chain Polyether Polyols with a High Proportion of Primary Oh Groups
Patent:
6,617,419 →
Application:
10/009,889 →
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Mar 9, 2016
From: BAYER AG
To: BAYER MATERIALSCIENCE AG
Reel/Frame 038044/0799 →
Change of Name
Mar 22, 2016
From: BAYER MATERIALSCIENCE AG
To: COVESTRO DEUTSCHLAND AG
Reel/Frame 038399/0358 →
Change of Name
Apr 6, 2016
From: BAYER MATERIALSCIENCE AG
To: COVESTRO DEUTSCHLAND AG
Reel/Frame 038363/0921 →