Anke Frank
3Patents
3h-index
7Co-inventors
39Inventor score
Filing activity: Oct 22, 1993 → Jul 12, 2002
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5645610A | Substituted 2-alkylamino-4-amino-1-alkylbenzene compounds and oxidation hair dye compositions based on said compounds | Chemistry; Metallurgy | 6 | Expired |
| US7125427B2 | Coloring agent for keratin fibers | Human Necessities | 4 | Expired |
| US5542953A | 5-halogen-2,4-Bis (alkylamino)-1-alkylbenzenes and hair dye compositions containing same | Chemistry; Metallurgy | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.