Inventor · disambiguated record
Frederick H. Howell
Also filed as: HOWELL FREDERICK H
14 granted patents·77 citations·filing 1982–1988
91Inventor score
Top patents by PatentIndex Score
14 records- 0186US4484000AHydroquinonesCIBA GEIGY AG·Filed 1982·Granted Nov 20, 1984·17 cites·11 claims
- 0273US4549015AHydroquinone ether compoundsCIBA GEIGY AG·Filed 1983·Granted Oct 22, 1985·7 cites·10 claims
- 0370US4835323AHydroquinonesCIBA GEIGY AG·Filed 1986·Granted May 30, 1989·8 cites·8 claims
- 0470US4631252AHydroquinone ether compoundsCIBA GEIGY AG·Filed 1985·Granted Dec 23, 1986·9 cites·3 claims
- 0570US4436936AAlkylation and aralkylation of aromatic aminesCIBA GEIGY CORP·Filed 1982·Granted Mar 13, 1984·10 cites·13 claims
- 0662US4608435ABenzo-1,4-quinonesCIBA GEIGY AG·Filed 1983·Granted Aug 26, 1986·7 cites·8 claims
- 0753US4661601AResorcinol compoundsCIBA GEIGY AG·Filed 1985·Granted Apr 28, 1987·4 cites·29 claims
- 0852US4924015ASubstituted anthraquinones and use thereof in epoxy resinsCIBA GEIGY CORP·Filed 1988·Granted May 8, 1990·4 cites·8 claims
- 0951US4904815APhenols and their productionCIBA GEIGY AG·Filed 1987·Granted Feb 27, 1990·4 cites·16 claims
- 1050US4616082AHydroquinone ether compoundsCIBA GEIGY AG·Filed 1985·Granted Oct 7, 1986·3 cites·10 claims
- 1147US4554379AAminoalkyl aromatic compounds and their productionCIBA GEIGY CORP·Filed 1985·Granted Nov 19, 1985·3 cites·5 claims
- 1230US4716248AAminocyclohexyl-substituted, branch alkylaminesCIBA GEIGY CORP·Filed 1984·Granted Dec 29, 1987·0 cites·12 claims
- 1330US4647699ANew diamines and a process for their productionCIBA GEIGY CORP·Filed 1985·Granted Mar 3, 1987·1 cites·8 claims
- 1429US4700003AOrtho nitroanilines and a process for their productionCIBA GEIGY CORP·Filed 1985·Granted Oct 13, 1987·0 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →