22 Utility Patents
#43 in Duesseldorf
#7,353 in Germany
#147,706 in the World
Forward Citations = 48
Company Filing History:

Ewald DÖrken Ag
Ewald Doerken Ag
4. 1 out of 16
Ewald Dorken Ag
5. 1 out of 150
Cognis Deutschland Gmbh & Co. Kg
where one patent can have more than one assignee
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