Michael Hnatchenko
7Patents
7h-index
2Co-inventors
49Inventor score
Filing activity: Feb 9, 1976 → Jan 12, 1990
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4507280A | Hair conditioning composition and method for use | Human Necessities | 132 | Expired |
| US4776855A | Hair dyeing process and composition | Human Necessities | 29 | Expired |
| US4402700A | Composition for coloring hair containing an oxidizing agent and certain quaternary amines | Human Necessities | 25 | Expired |
| USRE33786E | Hair dyeing process and composition | General | 21 | Expired |
| US4096243A | Composition for lightening hair containing an oxidizing agent and certain quaternary amines | Emerging Cross-Sectional Technologies | 11 | Expired |
| US4532127A | Composition for lightening or coloring hair containing an oxidizing agent and certain quaternary amines | Human Necessities | 11 | Expired |
| US4119399A | Composition for coloring hair containing an oxidizing agent and certain quaternary amines | Emerging Cross-Sectional Technologies | 8 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.