Inventor · disambiguated record

Douglas C. Littlefield

Also filed as: LITTLEFIELD DOUGLAS C

1 granted patent·97 citations·filing 1993–1993

53Inventor score

Technology areasC25B

Files withENERGY REDUCTIONS SYSTEMS INC1

Top patents by PatentIndex Score

1 record

0183US5458095AAir pump-assisted hydrogen/oxygen fuel cell for use with internal combustion engineENERGY REDUCTIONS SYSTEMS INC·Filed 1993·Granted Oct 17, 1995·97 cites·26 claims

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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →