Inventor · disambiguated record
David Duff
Also filed as: DUFF DAVID · DUFF DAVID W
3 granted patents·4 pending applications·93 citations·filing 1981–2020
73Inventor score
Top patents by PatentIndex Score
7 records- 0186US6203173B1Lighting assembly having above water and underwater operational capabilitiesWET ENTPR INC·Filed 1998·Granted Mar 20, 2001·69 cites·46 claims
- 0251US5705928ASample delivery system used in chemical analysis methods which employs pressurized gas for sample conveyanceVARIAN ASSOCIATES·Filed 1996·Granted Jan 6, 1998·19 cites·17 claims
- 0348US2020108408A1Digitally controlled chemical dispersal deviceDUFF DAVID W·Filed 2019·Application pending·0 cites
- 0447US2014290123A1Multi-layer trap system for disease preventionDUFF DAVID W·Filed 2014·Application pending·0 cites
- 0541US2001014021A1Lighting assembly having above water and underwater operational capabilitiesFiled 2001·Application pending·0 cites
- 0638US2020221667A1Digitally controlled alternating pressure garmentDUFF DAVID·Filed 2020·Application pending·0 cites
- 0730US4398312ASofa bed overdeck assemblyHOOVER UNIVERSAL·Filed 1981·Granted Aug 16, 1983·5 cites·2 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →