19 Utility and 3 Design Patents
#1 in Ellerbek
#9,027 in Germany
#174,303 in the World
rank by utility patentsForward Citations = 145
Company Filing History:

Rotring-werke Riepe Kg
Mesne Koh-i-noor Rapidograph, Inc.
4. 1 out of 8
Rotring International Gmbh & Co. Kg
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