Inventor · disambiguated record
Donald C. Schrock
Also filed as: SCHROCK DONALD C
7 granted patents·136 citations·filing 1974–1989
87Inventor score
Top patents by PatentIndex Score
7 records- 0178US4973402AFlow restrictor and strainer assembly for a toilet tank fill valve and the likeMASCO CORP·Filed 1989·Granted Nov 27, 1990·33 cites·12 claims
- 0267US4314581ARotary valve washerless cartridgeSTREAMWAY CORP·Filed 1979·Granted Feb 9, 1982·23 cites·1 claims
- 0364US5054133ALow water consumption toilet fixtureMASCO CORPORATIOPN OF INDIANA·Filed 1989·Granted Oct 8, 1991·31 cites·7 claims
- 0455US4996726AAccelerated rim wash for a toiletMASCO CORP·Filed 1989·Granted Mar 5, 1991·15 cites·15 claims
- 0555US4439874AWater closet rim and venting process thereforMASCO CORP·Filed 1982·Granted Apr 3, 1984·18 cites·19 claims
- 0646US3934278ABathtub supportCRANE CO·Filed 1974·Granted Jan 27, 1976·9 cites·11 claims
- 0739US4874009AAnti-seizing cap ringMASCO CORP·Filed 1988·Granted Oct 17, 1989·7 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →