Inventor · disambiguated record
Willem T. De Graaff
Also filed as: DE GRAAFF WILLEM T
3 granted patents·39 citations·filing 1987–1999
70Inventor score
Top patents by PatentIndex Score
3 records- 0165US6326576B1Method and apparatus for electrical discharge machiningGEN ELECTRIC·Filed 1999·Granted Dec 4, 2001·27 cites·23 claims
- 0230US6231035B1Workpiece fixtureGEN ELECTRIC·Filed 1999·Granted May 15, 2001·6 cites·11 claims
- 0327US4868961AApparatus for engraving vein cutsCOLEMAN FRIZZELL INC·Filed 1987·Granted Sep 26, 1989·6 cites·11 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →