Inventor · disambiguated record
James J. Ferris
Also filed as: FERRIS JAMES J
3 granted patents·178 citations·filing 1975–1998
75Inventor score
Top patents by PatentIndex Score
3 records- 0194US5989741AElectrochemical cell system with side-by-side arrangement of cellsDU PONT·Filed 1998·Granted Nov 23, 1999·153 cites·33 claims
- 0256US4140440AInternal combustion piston engine-driven piston pump with hydraulic pressure return of combustion piston from BDCHYDRAULIC ENGINE DEV GROUP·Filed 1975·Granted Feb 20, 1979·15 cites·27 claims
- 0342US4344742AEngine apparatusFERRIS JAMES J·Filed 1978·Granted Aug 17, 1982·10 cites·2 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →