Horst Hoeffkes
60Patents
15h-index
57Co-inventors
87Inventor score
Filing activity: Jan 8, 1986 → Sep 9, 2005
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6284003A | Oxidation colorants comprising 2-(2,5-diaminophenyl)-ethanol compounds and 2-chloro-6-methyl-3-aminophenol compounds | Human Necessities | 277 | Expired |
| US4814101A | Zwitterionic polymers and their use in hair treatment preparations | Human Necessities | 58 | Expired |
| US5002761A | Hair treatment compositions containing natural ingredients | Human Necessities | 44 | Expired |
| US5616150A | Isatin-containing formulations for coloring keratin-containing fibers | Human Necessities | 43 | Expired |
| US4834971A | Hair permanent-waving method and aftertreatment composition | Human Necessities | 42 | Expired |
| US6660045B1 | Hair colorant preparation | Human Necessities | 36 | Expired |
| US4900545A | Hair split-end regeneration composition | Human Necessities | 25 | Expired |
| US4898725A | Preparations for washing or rinsing hair containing di- or tri- carboxylic acids | Human Necessities | 23 | Expired |
| US6537330B1 | Colorants | Human Necessities | 23 | Expired |
| US5017305A | Free-flowing pearlescent concentrate | Emerging Cross-Sectional Technologies | 21 | Expired |
| US4698065A | Liquid oxidation hair dye with phase stabilizer | Human Necessities | 19 | Expired |
| US5716418A | Coloring of keratin-containing fibers with preparations which contain alkyl glycosides and oxidation dye precursors | Human Necessities | 16 | Expired |
| US4824594A | Free-flowing pearlescent concentrate | Emerging Cross-Sectional Technologies | 16 | Expired |
| US6371993B1 | Utilization of onium aldehydes and onium ketones for dying fibers containing keratin | Human Necessities | 16 | Expired |
| US4820511A | Hair care and aftertreatment preparations | Human Necessities | 15 | Expired |
| US4919923A | Cosmetic emulsions having improved flow behavior | Human Necessities | 15 | Expired |
| US7225920B2 | Mixing device | Performing Operations; Transporting | 15 | Expired |
| US4948528A | Free-flowing pearlescent concentrate | Emerging Cross-Sectional Technologies | 14 | Expired |
| US5291905A | Hair treatment applicator | Human Necessities | 14 | Expired |
| US5743919A | Isatin derivatives for coloring keratin-containing fibers | Human Necessities | 11 | Expired |
| US4761249A | Soil-collecting cleaning enhancers in aqueous surfactant laundering and cleaning solutions | Chemistry; Metallurgy | 10 | Expired |
| US6688314B1 | Application device for highlighting hair | Human Necessities | 9 | Expired |
| US5752984A | Use of 1,2,3,4-tetrahydroquinoxalines as oxidation dye precursors in oxidative coloring formulations | Human Necessities | 8 | Expired |
| US6165230A | 1,4-diazacycloheptane derivatives and their use in hair oxidation dyes | Textiles; Paper | 8 | Expired |
| US5651793A | Hydrogen peroxide preparations containing foam regulators | Performing Operations; Transporting | 8 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.