Inventor · disambiguated record
David S. Duncan
Also filed as: DUNCAN DAVID S
7 granted patents·218 citations·filing 1983–1990
88Inventor score
Top patents by PatentIndex Score
7 records- 0194USD342652SGarden prunerFISKARS AB OY·Filed 1990·Granted Dec 28, 1993·57 cites·1 claims
- 0293USD336222SGarden prunerFISKARS AB OY·Filed 1990·Granted Jun 8, 1993·55 cites·1 claims
- 0368US4852254ARazor blade assembly and its method of manufactureWILKINSON SWORD LTD·Filed 1987·Granted Aug 1, 1989·27 cites·10 claims
- 0462US4860449ARazor blade assemblyWILKINSON SWORD LTD·Filed 1983·Granted Aug 29, 1989·26 cites·7 claims
- 0558US4501067ARazors and shaving units for razorsWILKINSON SWORD LTD·Filed 1983·Granted Feb 26, 1985·23 cites·4 claims
- 0654US4654968AKnife sharpenersWILKINSON SWORD LTD·Filed 1985·Granted Apr 7, 1987·23 cites·14 claims
- 0735US4690018ARazor blade assembly and its method of manufactureWILKINSON SWORD LTD·Filed 1985·Granted Sep 1, 1987·7 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →