Patent Assignment
Reel/Frame 014283/0456
Assignment of Assignor's Interest
Recorded: 2002-12-04
Pages: 3
Assignors
SCHLEMANEAT, ANDREAS
Executed: 2002-10-16
TILLACK, JORG
Executed: 2002-10-21
LAUE, JORG
Executed: 2002-10-28
WITOSSEK, HERBERT
Executed: 2002-11-08
Assignee
BAYER AKTIENGESELLSCHAFT
D 51368 LEVERKUSEN, GERMANY
Covered Property
(1)
Method for Producing Aliphatic Oligocarbonate Diols
Patent:
6,833,433 →
Application:
10/297,542 →
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 →