17 Utility Patents
#50 in Essen
#10,829 in Germany
#205,509 in the World
Forward Citations = 72
Company Filing History:
Didier Engineering Gmbh
Didier-werke Ag
Thyssengas Gmbh
4. 1 out of 231
Bergwerksverband Gmbh
where one patent can have more than one assignee
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