Klaus Ambrosius
14Patents
10h-index
28Co-inventors
72Inventor score
Filing activity: Sep 22, 1983 → Jul 6, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6132873A | Multilayered interference pigments | Emerging Cross-Sectional Technologies | 45 | Expired |
| US4744832A | Iron oxide coated perlescent pigments | Emerging Cross-Sectional Technologies | 42 | Expired |
| US6019831A | Non-lustrous pigments | Emerging Cross-Sectional Technologies | 26 | Expired |
| US4482389A | Nacreous pigments | Chemistry; Metallurgy | 23 | Expired |
| US7604862B2 | Multilayer pigments based on glass flakes | Emerging Cross-Sectional Technologies | 21 | Expired |
| US7226503B2 | Effect pigments based on coated glass flakes | Emerging Cross-Sectional Technologies | 21 | Expired |
| US5022923A | Pearl luster pigments stable to glaze and enamel | Chemistry; Metallurgy | 20 | Expired |
| US8500901B2 | Interference pigments | Emerging Cross-Sectional Technologies | 17 | Active |
| US5540769A | Platelet-like colored pigments and process for producing the same | Emerging Cross-Sectional Technologies | 16 | Expired |
| US4668570A | Lacquering process using nacreous pigments | Emerging Cross-Sectional Technologies | 13 | Expired |
| US4867794A | Process for preparing rutile-coated mica pigments | Chemistry; Metallurgy | 7 | Expired |
| US5759257A | Color pigments | Chemistry; Metallurgy | 6 | Expired |
| US5378400A | Preparation of metal oxide sols by electrolysis | Human Necessities | 3 | Expired |
| US11773270B2 | Effect pigments | Chemistry; Metallurgy | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.