Inventor · disambiguated record
David S. Rumpf
Also filed as: RUMPF DAVID S
4 granted patents·444 citations·filing 1989–1990
84Inventor score
Top patents by PatentIndex Score
4 records- 0194US5030603ALightweight oil and gas well proppantsNORTON ALCOA·Filed 1990·Granted Jul 9, 1991·147 cites·20 claims
- 0294US4921820ALightweight proppant for oil and gas wells and methods for making and using sameNORTON ALCOA PROPPANTS·Filed 1989·Granted May 1, 1990·138 cites·21 claims
- 0392US4921821ALightweight oil and gas well proppants and methods for making and using sameNORTON ALCOA PROPPANTS·Filed 1989·Granted May 1, 1990·97 cites·23 claims
- 0472US4977116AMethod for making lightweight proppant for oil and gas wellsNORTON ALCOA·Filed 1990·Granted Dec 11, 1990·62 cites·12 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →