Inventor · disambiguated record
Charles W. Harpold
Also filed as: HARPOLD CHARLES W
11 granted patents·192 citations·filing 1980–1993
91Inventor score
Top patents by PatentIndex Score
11 records- 0196US4826539ACleaning apparatus and methodHARCO GRAPHIC PRODUCTS INC·Filed 1987·Granted May 2, 1989·71 cites·33 claims
- 0277US4381706APrinting screen and methodHARPOLD CHARLES W·Filed 1981·Granted May 3, 1983·33 cites·19 claims
- 0369US5020430APrinterHARCO GRAPHIC PRODUCTS INC·Filed 1989·Granted Jun 4, 1991·15 cites·15 claims
- 0464US5170710AMethod and apparatus for handling printing inkHARCO GRAPHIC PRODUCTS INC·Filed 1991·Granted Dec 15, 1992·13 cites·21 claims
- 0559US5275100AMethod and apparatus for handling printing inkHARCO GRAPHIC PRODUCTS INC·Filed 1992·Granted Jan 4, 1994·11 cites·7 claims
- 0656US4817523AFlat bed screen printing pressHARCO GRAPHIC PRODUCTS INC·Filed 1986·Granted Apr 4, 1989·11 cites·10 claims
- 0753US4920878AScreen printer with plater sifting structureHARCO GRAPHIC PRODUCTS INC·Filed 1988·Granted May 1, 1990·9 cites·38 claims
- 0849US4750608ABelt tracking system for screen printing conveyor driersHARCO GRAPHIC PRODUCTS INC·Filed 1986·Granted Jun 14, 1988·8 cites·14 claims
- 0949US4351238AMethod for screen printingHARPOLD CHARLES W·Filed 1980·Granted Sep 28, 1982·11 cites·17 claims
- 1041US5407097AMethod and apparatus for handling printing inkHARCO GRAPHIC PRODUCTS INC·Filed 1993·Granted Apr 18, 1995·5 cites·24 claims
- 1139US4809604AMachine for screen printing numbersHARCO GRAPHIC PRODUCTS INC·Filed 1988·Granted Mar 7, 1989·5 cites·23 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →