Inventor · disambiguated record
Duane C. Hargis
Also filed as: HARGIS DUANE C
18 granted patents·196 citations·filing 1976–1989
94Inventor score
Files withETHYL CORP18
Top patents by PatentIndex Score
18 records- 0193US4072733AConversion of methanol and dimethyl etherETHYL CORP·Filed 1976·Granted Feb 7, 1978·53 cites·6 claims
- 0283US4072732AConversion of methanol and dimethyl ether to C2 -C6 monoolefins using a partially hydrated zirconium sulfate catalystETHYL CORP·Filed 1976·Granted Feb 7, 1978·17 cites·6 claims
- 0380US4605766AAlkylation processETHYL CORP·Filed 1984·Granted Aug 12, 1986·14 cites·39 claims
- 0473US4725681AProduction of triethylenediamineETHYL CORP·Filed 1985·Granted Feb 16, 1988·10 cites·19 claims
- 0572US4261864AProcess for the selective preparation of alpha-olefin from synthesis gasETHYL CORP·Filed 1979·Granted Apr 14, 1981·8 cites·3 claims
- 0671US4370507AEthanol from methanol and synthesis gasETHYL CORP·Filed 1982·Granted Jan 25, 1983·21 cites·6 claims
- 0767US4261865ACatalyst for olefin productionETHYL CORP·Filed 1979·Granted Apr 14, 1981·6 cites·3 claims
- 0866US4562296AProduction of aldehydes and ketonesETHYL CORP·Filed 1984·Granted Dec 31, 1985·7 cites·16 claims
- 0965US4721810ACatalytic alkylation of aromatic amines with ethersETHYL CORP·Filed 1984·Granted Jan 26, 1988·7 cites·13 claims
- 1065US4613705ACatalytic alkylation of aromatic amines with alkanolsETHYL CORP·Filed 1984·Granted Sep 23, 1986·17 cites·12 claims
- 1152US4950799AProcess for catalytic reduction of carboxylic acids to aldehydesETHYL CORP·Filed 1989·Granted Aug 21, 1990·11 cites·21 claims
- 1245US4929764AAlkylation of aromatic aminesETHYL CORP·Filed 1985·Granted May 29, 1990·2 cites·15 claims
- 1345US4626592AGem cyclodialkylation of amines and amidesETHYL CORP·Filed 1984·Granted Dec 2, 1986·2 cites·23 claims
- 1442US4415749ACatalytic process for the selective formation of ethanol and methyl acetate from methanol and synthesis gasETHYL CORP·Filed 1981·Granted Nov 15, 1983·6 cites·6 claims
- 1540US4599449ACatalytic alkylation of aromatic amines with alkanolsETHYL CORP·Filed 1984·Granted Jul 8, 1986·5 cites·16 claims
- 1640US4361499ACatalyst for converting methanol and synthesis gas to ethanolETHYL CORP·Filed 1980·Granted Nov 30, 1982·5 cites·5 claims
- 1740US4309314ACatalytic composition for the selective formation of ethanol and methyl acetate from methanol and synthesis gasETHYL CORP·Filed 1980·Granted Jan 5, 1982·5 cites·5 claims
- 1831US4798894AGem cyclodialkylation of amines and amidesETHYL CORP·Filed 1987·Granted Jan 17, 1989·0 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →