Inventor · disambiguated record
Charles H. Derrickson
Also filed as: DERRICKSON CHARLES H
3 granted patents·34 citations·filing 1976–1998
70Inventor score
Technology areasB41F
Top patents by PatentIndex Score
3 records- 0169US4111118AMulti-purpose screen printing machineAMERICAN SCREEN PRINTING·Filed 1976·Granted Sep 5, 1978·16 cites·12 claims
- 0260US4122768AScreen printing press attachment for printing objects of revolutionDUBUIT OF AMERICA INC·Filed 1977·Granted Oct 31, 1978·12 cites·6 claims
- 0339US5857409ASystem for multi-color printing with object registration meansDUBUIT OF AMERICA INC·Filed 1998·Granted Jan 12, 1999·6 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →