Inventor · disambiguated record
Eugene Zeffren
Also filed as: ZEFFREN EUGENE
11 granted patents·1 pending application·486 citations·filing 1973–1999
93Inventor score
Top patents by PatentIndex Score
12 records- 0193US4011169AStabilization and enhancement of enzymatic activityPROCTER & GAMBLE·Filed 1976·Granted Mar 8, 1977·79 cites·10 claims
- 0293US3944470AStabilization and enhancement of enzymatic activityPROCTER & GAMBLE·Filed 1973·Granted Mar 16, 1976·44 cites·6 claims
- 0389US3997659AHair bleaching compositions containing an arginine compoundPROCTER & GAMBLE·Filed 1974·Granted Dec 14, 1976·96 cites·5 claims
- 0487US3957424AEnzyme-activated oxidative process for coloring hairPROCTER & GAMBLE·Filed 1974·Granted May 18, 1976·46 cites·15 claims
- 0585US5384114AOpacifier for water-based compositionsCURTIS HELENE IND INC·Filed 1993·Granted Jan 24, 1995·46 cites·12 claims
- 0681US5393519AShampoo compositionsCURTIS HELENE IND INC·Filed 1992·Granted Feb 28, 1995·69 cites·24 claims
- 0770US4960588AHair treatment compositions to impart durable hair set retention propertiesCURTIS HELENE IND INC·Filed 1988·Granted Oct 2, 1990·39 cites·75 claims
- 0864US5665267AShampoo compositions and suspending agent thereforCURTIS HELENE IND INC·Filed 1996·Granted Sep 9, 1997·24 cites·13 claims
- 0960US5587154AShampoo compositions and suspending agent thereforCURTIS HELENE IND INC·Filed 1994·Granted Dec 24, 1996·22 cites·20 claims
- 1049US5562898AOpacifier for water-based compositionsCURTIS HELENE IND INC·Filed 1994·Granted Oct 8, 1996·11 cites·16 claims
- 1148US3935868AHair setting processPROCTER & GAMBLE·Filed 1974·Granted Feb 3, 1976·10 cites·4 claims
- 1227US2002015727A1Hair composition used for obtaining improved optical glossFiled 1999·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →