IP Library Assignment 044161/0623
Patent Assignment
Reel/Frame 044161/0623

Assignment of Assignor's Interest

Recorded: 2017-11-17 Pages: 7
Assignors
LOHE, MATTHIAS
Executed: 2004-10-31
COOK, MICHAEL
Executed: 2004-11-03
KLIPPSTEIN, ACHIM
Executed: 2004-11-07
Assignee
AIR PRODUCTS AND CHEMICALS, INC.
7201 HAMILTON BLVD., PATENT DEPT., ALLENTOWN, PENNSYLVANIA, 18195-1501
Covered Property (1)
Method of Preparation of a Water Based Epoxy Curing Agent
Patent: 7,615,584 →
Application: 12/405,266 →
Publication: US 2009/0176931
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Apr 18, 2018
From: AIR PRODUCTS AND CHEMICALS, INC.
To: EVONIK DEGUSSA GMBH
Reel/Frame 045969/0001 →
Change of Name Apr 20, 2020
From: EVONIK DEGUSSA GMBH
To: EVONIK OPERATIONS GMBH
Reel/Frame 052443/0185 →