Giuseppe Prota
16Patents
8h-index
6Co-inventors
61Inventor score
Filing activity: May 12, 1988 → Sep 18, 1998
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5545399A | Cosmetic composition | Human Necessities | 54 | Expired |
| US5279618A | Process and kit for dyeing hair | Human Necessities | 16 | Expired |
| US4904274A | Coloring hair with aminoalkyl-or aminohydroxyalkyl-catechols | Human Necessities | 16 | Expired |
| US5628799A | Hair dying methods and kits which contain a dopa species, reactive direct dye, and a ferricyanide oxidant | Human Necessities | 12 | Expired |
| US5273550A | Process and kit for dyeing hair | Human Necessities | 11 | Expired |
| US5441542A | Process and kit for post-oxidative treatment of permanently dyed hair | Human Necessities | 9 | Expired |
| US5704949A | Process for the manufacture of a hair dye product containing 5,6-dihydroxyindole | Human Necessities | 9 | Expired |
| US5702712A | Melanoquaternary compounds and their use as hair dyes and for skin treatment | Human Necessities | 9 | Expired |
| US5279617A | Process and kit for dyeing hair | Human Necessities | 8 | Expired |
| US5346509A | Process for dyeing hair by the sequential treatment of hair with metal ion-containing composition and with a dye composition containing 5,6-dihydroxyindole-2-carboxylic acid and certain derivatives thereof | Human Necessities | 8 | Expired |
| US5686084A | Synthesis of quaternary melanin compounds and their use as hair dyes or for skin treatment | Human Necessities | 8 | Expired |
| US5961991A | Melanoquaternary compounds and their use as hair dyes and for skin treatment | Human Necessities | 5 | Expired |
| US5827330A | Synthesis of quarternary melanin compounds and their use as hair dyes or for skin treatment | Human Necessities | 4 | Expired |
| US5792220A | Dyeing hair with melanin procursors in the presence of iodate and peroxide | Human Necessities | 4 | Expired |
| US6313313A | Synthesis of melanoquaternary compounds and their use as hair dyes and for skin treatment | Human Necessities | 0 | Expired |
| US6160127A | Process for the preparation of substituted indoles | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.