Klaus Hoffmann
8Patents
5h-index
7Co-inventors
52Inventor score
Filing activity: May 7, 1985 → Jul 22, 1997
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4654161A | Siloxanes with betaine groups, their synthesis and use in cosmetic preparations | Chemistry; Metallurgy | 116 | Expired |
| US4609750A | Siloxanes with betaine groups, their synthesis and use in hair care products | Chemistry; Metallurgy | 21 | Expired |
| US4844826A | Use of organosilicon compounds to thicken oils | Chemistry; Metallurgy | 12 | Expired |
| US4988806A | Nitrogen-containing derivatives of carboxymethylcellulose, their synthesis and their use in cosmetic preparations | Human Necessities | 9 | Expired |
| US5124446A | Betaine group-containing polysaccharides with recurring anhydroglucose units, their synthesis and their use in cosmetic preparations | Chemistry; Metallurgy | 7 | Expired |
| US6040396A | Curing catalysts for curing epoxy resins | Chemistry; Metallurgy | 2 | Expired |
| US5243072A | Betaine group-containing polysaccharides with recurring anhydroglucose units, their synthesis and their use in cosmetic preparations | Chemistry; Metallurgy | 2 | Expired |
| US5023246A | Betaine group-containing derivatives of carboxymethylcellulose, their synthesis and their use in cosmetic preparations | Human Necessities | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.