Inventor · disambiguated record
Stephen M. Kovach
Also filed as: KOVACH STEPHEN M
29 granted patents·609 citations·filing 1974–1986
97Inventor score
Files withASHLAND OIL INC29
Top patents by PatentIndex Score
29 records- 0193US4432890AImmobilization of vanadia deposited on catalytic materials during carbo-metallic oil conversionASHLAND OIL INC·Filed 1981·Granted Feb 21, 1984·65 cites·15 claims
- 0293US3943053ASelective hydrogenation of aromatics and olefins in hydrocarbon fractionsASHLAND OIL INC·Filed 1974·Granted Mar 9, 1976·50 cites·12 claims
- 0389US4405445AHomogenization of water and reduced crude for catalytic crackingASHLAND OIL INC·Filed 1981·Granted Sep 20, 1983·51 cites·28 claims
- 0485US4549958AImmobilization of vanadia deposited on sorbent materials during treatment of carbo-metallic oilsASHLAND OIL INC·Filed 1982·Granted Oct 29, 1985·38 cites·46 claims
- 0584US4457833AProcess and catalyst for the conversion of carbo-metallic containing oilsASHLAND OIL INC·Filed 1982·Granted Jul 3, 1984·30 cites·15 claims
- 0683US4412914AEndothermic removal of coke deposited on sorbent materials during carbo-metallic oil conversionASHLAND OIL INC·Filed 1981·Granted Nov 1, 1983·34 cites·38 claims
- 0782US4480047AHigh performance catalysts for carbometallic oil conversion and their manufacturing and useASHLAND OIL INC·Filed 1983·Granted Oct 30, 1984·36 cites·31 claims
- 0880US4551231AAmmonia contacting to passivate metals deposited on a cracking catalyst during reduced crude processingASHLAND OIL INC·Filed 1983·Granted Nov 5, 1985·28 cites·14 claims
- 0975US4513093AImmobilization of vanadia deposited on sorbent materials during treatment of carbo-metallic oilsASHLAND OIL INC·Filed 1981·Granted Apr 23, 1985·19 cites·29 claims
- 1075US4485184ATrapping of metals deposited on catalytic materials during carbometallic oil conversionASHLAND OIL INC·Filed 1983·Granted Nov 27, 1984·24 cites·9 claims
- 1175US4425259AEndothermic removal of coke deposited on catalytic materials during carbo-metallic oil conversionASHLAND OIL INC·Filed 1981·Granted Jan 10, 1984·25 cites·9 claims
- 1274US3965252AHydrogen productionASHLAND OIL INC·Filed 1974·Granted Jun 22, 1976·23 cites·5 claims
- 1373US4450241AEndothermic removal of coke deposited on catalytic materials during carbo-metallic oil conversionASHLAND OIL INC·Filed 1982·Granted May 22, 1984·24 cites·14 claims
- 1473US4432863ASteam reforming of carbo-metallic oilsASHLAND OIL INC·Filed 1981·Granted Feb 21, 1984·20 cites·23 claims
- 1571US4588702AHigh performance catalysts for carbometallic oil conversion and their manufacture and useASHLAND OIL INC·Filed 1984·Granted May 13, 1986·22 cites·24 claims
- 1666US4049576APlatinum-palladium catalyst for selective hydrogenation of aromatics and olefins in hydrocarbon fractionsASHLAND OIL INC·Filed 1975·Granted Sep 20, 1977·15 cites·6 claims
- 1764US4591425ACascading of fluid cracking catalystsASHLAND OIL INC·Filed 1984·Granted May 27, 1986·16 cites·11 claims
- 1861US3998897ASelective hydrogenation of cyclopentadiene-norbornadiene mixturesASHLAND OIL INC·Filed 1975·Granted Dec 21, 1976·5 cites·6 claims
- 1960US4437981AImmobilization and neutralization of contaminants in crude oilASHLAND OIL INC·Filed 1982·Granted Mar 20, 1984·13 cites·13 claims
- 2059US4489213AAlumina catalyst for alkylating aromatics with olefinsASHLAND OIL INC·Filed 1981·Granted Dec 18, 1984·5 cites·10 claims
- 2156US4407714AProcess for cracking high-boiling hydrocarbons using high pore volume, low density catalystASHLAND OIL INC·Filed 1981·Granted Oct 4, 1983·12 cites·67 claims
- 2255US4561968ACarbometallic oil conversion with zeolite y containing catalystASHLAND OIL INC·Filed 1984·Granted Dec 31, 1985·12 cites·13 claims
- 2354US4374019AProcess for cracking high-boiling hydrocarbons using high ratio of catalyst residence time to vapor residence timeASHLAND OIL INC·Filed 1981·Granted Feb 15, 1983·11 cites·70 claims
- 2452US4496665AProcess for cracking high-boiling hydrocarbons using continuous addition of acidity enhancing additivesASHLAND OIL INC·Filed 1983·Granted Jan 29, 1985·9 cites·7 claims
- 2544US4552647AProcess for cracking high-boiling hydrocarbons using continuous addition of acidity enhancing additivesASHLAND OIL INC·Filed 1984·Granted Nov 12, 1985·6 cites·20 claims
- 2643US4508839ACatalyst for the conversion of carbo-metallic containing oilsASHLAND OIL INC·Filed 1981·Granted Apr 2, 1985·6 cites·2 claims
- 2741US4219690AAlkylation of aromatics with olefins in the presence of an alumina catalystASHLAND OIL INC·Filed 1979·Granted Aug 26, 1980·1 cites·6 claims
- 2840US4750987AImmobilization of vanadia deposited on catalytic materials during carbo-metallic oil conversionASHLAND OIL INC·Filed 1986·Granted Jun 14, 1988·7 cites·31 claims
- 2934US4285835ACatalyst for alkylating aromatics with olefinsASHLAND OIL INC·Filed 1980·Granted Aug 25, 1981·2 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →