Inventor · disambiguated record
Frank D. Lewis
Also filed as: LEWIS FRANK · LEWIS FRANK D · LEWIS SR FRANK D
3 granted patents·61 citations·filing 1976–1979
72Inventor score
Top patents by PatentIndex Score
3 records- 0182US4044852AElectrically assisted cycleLUCAS INDUSTRIES LTD·Filed 1976·Granted Aug 30, 1977·38 cites·18 claims
- 0256US4145956APilot operated stepping valveUS AIR FORCE·Filed 1977·Granted Mar 27, 1979·17 cites·2 claims
- 0333US4225952AMarine depth sounding apparatusLEWIS FRANK D·Filed 1979·Granted Sep 30, 1980·6 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →