Inventor · disambiguated record
Donald Y. Clark
Also filed as: CLARK DONALD · CLARK DONALD R · CLARK DONALD Y
5 granted patents·1 pending application·71 citations·filing 1978–2021
79Inventor score
Top patents by PatentIndex Score
6 records- 0179US4164327AGrain spreaderCLARK DONALD Y·Filed 1978·Granted Aug 14, 1979·29 cites·17 claims
- 0275US4318511AMaterial spreader deviceCLARK DONALD Y·Filed 1980·Granted Mar 9, 1982·27 cites·11 claims
- 0342US4340310AControl mechanism for a grain bin stirring apparatusCLARK DONALD Y·Filed 1981·Granted Jul 20, 1982·10 cites·8 claims
- 0441US2003110821A1Process for manufacturing fertilizerFiled 2002·Application pending·0 cites
- 0538US11525092B2Process for extracting crude oil from substratesTHAYER IAN·Filed 2021·Granted Dec 13, 2022·0 cites·2 claims
- 0629US4322171AGrain stirring apparatusCLARK DONALD Y·Filed 1980·Granted Mar 30, 1982·5 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →