16 Utility Patents
#8 in Herne
#11,919 in Germany
#223,246 in the World
Forward Citations = 121
Company Filing History:
Dr. C. Otto & Comp. G.m.b.h.
Saarbergwerke Aktiengesellschaft
Saabergwerke, A.g.
4. 1 out of 1
Saarbergwerke A.c.
5. 1 out of 1
Saarberg & Dr. C. Otto Gesellschaft Fur Kohledruckvergasung Mbh
where one patent can have more than one assignee
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