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Patent Assignment
Reel/Frame 012720/0797

Assignment of Assignor's Interest

Recorded: 2002-05-22 Pages: 3
Assignors
WEUTHEN, MANFRED
Executed: 2002-03-06
RATHS, HANS-CHRISTIAN
Executed: 2002-03-22
ELSNER, MICHAEL
Executed: 2002-04-02
Assignee
COGNIS DEUTSCHLAND GMBH (COGNIS)
HENKELSTRASSE 67, DUESSELDORF, D-405, GERMANY
Covered Property (1)
Cleaning Compositions Containing Hydroxy Mixed Ethers, Methods of Preparing the Same, and Uses Therefor
Patent: 6,831,052 →
Application: 10/062,101 →
Publication: US 2003/0045448
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Jan 28, 2005
From: COGNIS DEUTSCHLAND GMBH
To: COGNIS DEUTSCHLAND GMBH & CO. KG
Reel/Frame 015629/0035 →
Patent and Trademark Transfer and License Agreement Nov 11, 2008
From: COGNIS DEUTSCHLAND GMBH & CO. KG
To: COGNIS IP MANAGEMENT GMBH
Reel/Frame 021805/0578 →