Inventor · disambiguated record
Douglas S. Hart
Also filed as: HART DOUGLAS S
3 granted patents·139 citations·filing 1990–1992
75Inventor score
Top patents by PatentIndex Score
3 records- 0192US5259692AGround breaking apparatusBELLER LARRY D·Filed 1992·Granted Nov 9, 1993·96 cites·3 claims
- 0263US5203729AAuger-driven amphibious toyBELLER LARRY D·Filed 1992·Granted Apr 20, 1993·24 cites·2 claims
- 0353US5203274AAmphibious vehicleCRUDE TOOL WORKS·Filed 1990·Granted Apr 20, 1993·19 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →