Inventor · disambiguated record
Frank D. Bergstein
Also filed as: BERGSTEIN FRANK D · BERGSTEIN FRANK DAVID
9 granted patents·358 citations·filing 1975–1998
91Inventor score
Top patents by PatentIndex Score
9 records- 0195US5947678AWater wheel with cylindrical bladesFiled 1998·Granted Sep 7, 1999·120 cites·7 claims
- 0293US4960363AFluid flow driven engineBERGSTEIN FRANK D·Filed 1989·Granted Oct 2, 1990·87 cites·3 claims
- 0379US5333996ADual fluid rotor apparatusBERGSTEIN FRANK D·Filed 1993·Granted Aug 2, 1994·34 cites·17 claims
- 0476US5246342AWind rotor apparatusBERGSTEIN FRANK D·Filed 1992·Granted Sep 21, 1993·32 cites·14 claims
- 0567US4063403ACarton closing and sealing apparatusBERGSTEIN PACKAGING TRUST·Filed 1976·Granted Dec 20, 1977·20 cites·16 claims
- 0661US4032060ACarton with self-sealing reclosable end closureBERGSTEIN PACKAGING TRUST·Filed 1975·Granted Jun 28, 1977·23 cites·9 claims
- 0755US5088884ARotor assembly for fluid driven engineBERGSTEIN FRANK D·Filed 1990·Granted Feb 18, 1992·15 cites·10 claims
- 0855US3981432ACarton with tightly sealed end closuresBERGSTEIN PACKAGING TRUST·Filed 1975·Granted Sep 21, 1976·19 cites·12 claims
- 0938US4083486ACarton with sift-proof end closureBERGSTEIN PACKAGING TRUST·Filed 1977·Granted Apr 11, 1978·8 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →