5 Utility Patents
#129 in Bochum
#52,395 in Germany
#827,581 in the World
Forward Citations = 20
Company Filing History:
Bergwerksverband Gmbh
Dr. C. Otto & Comp. G.m.b.h.
Krupp Koppers Gmbh
4. 1 out of 2
Still Otto Gmbh
5. 1 out of 2
Didier Ofu Engineering Gmbh
where one patent can have more than one assignee
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