Inventor · disambiguated record
David L. Nystuen
Also filed as: NYSTUEN DAVID L
8 granted patents·504 citations·filing 1975–1987
89Inventor score
Top patents by PatentIndex Score
8 records- 0194US4826661ASolid block chemical dispenser for cleaning systemsECOLAB INC·Filed 1986·Granted May 2, 1989·296 cites·21 claims
- 0291US4020865ARemote powder detergent dispenserECONOMICS LAB·Filed 1975·Granted May 3, 1977·82 cites·23 claims
- 0390USD308739SDetergent dispenserECOLAB INC·Filed 1987·Granted Jun 19, 1990·33 cites·1 claims
- 0486US3982666AFine timing apparatus for electronic detergent dispensing systemECONOMICS LAB·Filed 1975·Granted Sep 28, 1976·56 cites·4 claims
- 0574USD306224SDetergent dispenserECOLAB INC·Filed 1987·Granted Feb 20, 1990·15 cites·1 claims
- 0665USD308738SDetergent dispenserECOLAB INC·Filed 1987·Granted Jun 19, 1990·11 cites·1 claims
- 0761USD244598SPowder detergent dispenser for use with remotely located washing machinesECONOMICS LAB·Filed 1975·Granted Jun 7, 1977·9 cites·1 claims
- 0829US4691721AVolumetric gravity feed liquid dispenserECOLAB INC·Filed 1984·Granted Sep 8, 1987·2 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →