IP Library Assignment 015808/0245
Patent Assignment
Reel/Frame 015808/0245

Assignment of Assignor's Interest

Recorded: 2004-09-15 Pages: 3
Assignors
HOFACKER, STEFFEN
Executed: 2004-06-26
BACHMANN, ROLF
Executed: 2004-06-25
BACKER, LOTHAR
Executed: 2004-07-05
WITOSSEK, HERBERT
Executed: 2004-07-01
Assignee
BAYER MATERIALSCIENCE AG
51368 LEVERKUSEN, GERMANY
Covered Property (1)
Preparation of Aliphatic Oligocarbonate Diols
Patent: 7,238,825 →
Application: 10/941,659 →
Publication: US 2005/0065360
Related Assignments (1)
Other recorded transfers of the patent in this record — the chain of ownership.
Change of Name Mar 30, 2016
From: BAYER MATERIALSCIENCE AG
To: COVESTRO DEUTSCHLAND AG
Reel/Frame 038399/0306 →