Inventor · disambiguated record
Ellwood S. Douglas
Also filed as: DOUGLAS ELLWOOD S
9 granted patents·259 citations·filing 1973–1992
90Inventor score
Top patents by PatentIndex Score
9 records- 0194US4529050ACombination weighing machine with adaptive signal correctionPACKAGE MACHINERY CO·Filed 1984·Granted Jul 16, 1985·58 cites·21 claims
- 0289US4534428AVibratory feeder control for a weighing systemPACKAGE MACHINERY CO·Filed 1983·Granted Aug 13, 1985·45 cites·16 claims
- 0388US4466500ACombination weighing systemPACKAGE MACHINERY CO·Filed 1982·Granted Aug 21, 1984·44 cites·20 claims
- 0485US5270495ACombination weighing machine with feed controlPACKAGE MACHINERY CO·Filed 1992·Granted Dec 14, 1993·51 cites·21 claims
- 0574US4000444AElectric circuit breaker with ground fault protection3 M COMPANY·Filed 1973·Granted Dec 28, 1976·26 cites·14 claims
- 0670US4813503AMethod and apparatus for preparing a blended product chargePACKAGE MACHINERY CO·Filed 1988·Granted Mar 21, 1989·23 cites·10 claims
- 0736US4550792ACombination weighing systemEAGLE MACHINERY COMPANY·Filed 1984·Granted Nov 5, 1985·7 cites·24 claims
- 0835US4535856ACombination weighing machine having short searchPACKAGE MACHINERY CO·Filed 1984·Granted Aug 20, 1985·4 cites·18 claims
- 0926US4533007ACombination weighing system with span adjustment deviceEAGLE MACHINERY COMPANY·Filed 1984·Granted Aug 6, 1985·1 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →