9 Utility Patents
#119 in Essen
#26,673 in Germany
#454,218 in the World
Forward Citations = 249
Company Filing History:
Krupp Koppers Gmbh
Bergwerksverband Gmbh
Still Otto Gmbh
4. 1 out of 2
Didier Ofu Engineering Gmbh
where one patent can have more than one assignee
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