Inventor · disambiguated record
Marvin J. Den Herder
Also filed as: DEN HERDER MARVIN J
4 granted patents·53 citations·filing 1975–1981
77Inventor score
Top patents by PatentIndex Score
4 records- 0173US4380498ASulfurized, transesterified oil additives and their use in a lubricating oil and a fuelFERRO CORP·Filed 1981·Granted Apr 19, 1983·12 cites·41 claims
- 0268US4380499ASulfurized fatty oil additives and their use in a lubricating oil and a fuelFERRO CORP·Filed 1981·Granted Apr 19, 1983·19 cites·35 claims
- 0365US3981813AHydraulic fluidSTANDARD OIL CO INDIANA·Filed 1975·Granted Sep 21, 1976·17 cites·18 claims
- 0435US4125471ASulfurized oilSTANDARD OIL CO·Filed 1977·Granted Nov 14, 1978·5 cites·14 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →