12 Utility and 3 Design Patents
#62 in Reutlingen
#18,244 in Germany
#325,047 in the World
rank by utility patentsForward Citations = 76
Company Filing History:
Hartmetall-werkzeugfabrik Paul Horn Gmbh
Sumitomo Electric Hardmetal Corp.

4. 1 out of 1
Ernst Graf Gmbh
5. 1 out of 6
Hartmetall-werkzeugfabrik Paul Hom Gmbh
where one patent can have more than one assignee
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