Inventor · disambiguated record
Duane D. Nowlin
Also filed as: NOWLIN DUANE · NOWLIN DUANE D
6 granted patents·170 citations·filing 1978–1995
86Inventor score
Top patents by PatentIndex Score
6 records- 0184US4332685AMethod and apparatus for treating waterECODYNE CORP·Filed 1978·Granted Jun 1, 1982·44 cites·8 claims
- 0283US4347224AChemical dispenserECODYNE CORP·Filed 1980·Granted Aug 31, 1982·56 cites·8 claims
- 0373US4722797AMethod for regeneration of a water softenerECODYNE CORP·Filed 1985·Granted Feb 2, 1988·28 cites·10 claims
- 0461USD309342SElectronic indicator faucetECODYNE CORP·Filed 1986·Granted Jul 17, 1990·11 cites·1 claims
- 0554US4599047AChemical feed pump flow indicatorECODYNE CORP·Filed 1984·Granted Jul 8, 1986·14 cites·20 claims
- 0645US5464532AWater softener with resin beads of different mesh sizesECOWATER SYSTEMS INC·Filed 1995·Granted Nov 7, 1995·17 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →