Inventor
ZEFFREN EUGENE
11 patents
⚠️ This page may combine multiple inventors who share the name “ZEFFREN EUGENE”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CURTIS HELENE IND INC
6 patentsUS5393519AFeb 28, 1995
Shampoo compositions
CURTIS HELENE IND INC69 citations94
US5384114AJan 24, 1995
Opacifier for water-based compositions
CURTIS HELENE IND INC46 citations94
US5587154ADec 24, 1996
Shampoo compositions and suspending agent therefor
CURTIS HELENE IND INC22 citations91
US4960588AOct 2, 1990
Hair treatment compositions to impart durable hair set retention properties
CURTIS HELENE IND INC39 citations91
US5665267ASep 9, 1997
Shampoo compositions and suspending agent therefor
CURTIS HELENE IND INC24 citations90
US5562898AOct 8, 1996
Opacifier for water-based compositions
CURTIS HELENE IND INC11 citations72
PROCTER & GAMBLE
5 patentsUS4011169AMar 8, 1977
Stabilization and enhancement of enzymatic activity
PROCTER & GAMBLE79 citations95
US3997659ADec 14, 1976
Hair bleaching compositions containing an arginine compound
PROCTER & GAMBLE96 citations91
US3944470AMar 16, 1976
Stabilization and enhancement of enzymatic activity
PROCTER & GAMBLE44 citations91
US3957424AMay 18, 1976
Enzyme-activated oxidative process for coloring hair
PROCTER & GAMBLE46 citations86
US3935868AFeb 3, 1976
Hair setting process
PROCTER & GAMBLE10 citations71