Inventor · disambiguated record
David N. Ferrence
Also filed as: FERRENCE DAVID N
3 granted patents·46 citations·filing 1990–1991
67Inventor score
Files withUTDC INC3
Top patents by PatentIndex Score
3 records- 0165US5078566AFreight discharge apparatusUTDC INC·Filed 1990·Granted Jan 7, 1992·34 cites·8 claims
- 0242US5015141AFreight transportation systemUTDC INC·Filed 1990·Granted May 14, 1991·12 cites·47 claims
- 0323US5131713AVehicle for a freight transportation systemUTDC INC·Filed 1991·Granted Jul 21, 1992·0 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →