Inventor · disambiguated record
Leonard C. Ellis
Also filed as: ELLIS LEONARD C
6 granted patents·86 citations·filing 1974–1990
83Inventor score
Top patents by PatentIndex Score
6 records- 0182US3985674AStabilized sodium dithionite solutionsVIRGINIA CHEMICALS INC·Filed 1974·Granted Oct 12, 1976·27 cites·15 claims
- 0276US4288402AAcid field test kit for refrigeration oils containing a leak detectorVIRGINIA CHEMICALS INC·Filed 1979·Granted Sep 8, 1981·30 cites·29 claims
- 0370US4283303AProcess for manufacture of stable sodium dithionite slurriesVIRGINIA CHEMICALS INC·Filed 1980·Granted Aug 11, 1981·19 cites·9 claims
- 0458US4328366ATreatment of waste stream from pentaerythritol productionVIRGINIA CHEMICALS INC·Filed 1980·Granted May 4, 1982·6 cites·31 claims
- 0530US5283046AMethod for re-use of aqueous co-product from manufacture of sodium dithioniteHOECHST CELANESE CORP·Filed 1990·Granted Feb 1, 1994·3 cites·3 claims
- 0624US4582510AStabilized dithionite solutionsELLIS LEONARD C·Filed 1984·Granted Apr 15, 1986·1 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →