Stephan Michaelis
24Patents
6h-index
28Co-inventors
69Inventor score
Filing activity: Aug 12, 1994 → Oct 5, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5948600A | Method and material for the formation of a heat mode image | Emerging Cross-Sectional Technologies | 50 | Expired |
| US5621027A | Dyestuffs for bulk dyeing plastics | Chemistry; Metallurgy | 22 | Expired |
| US8323357B2 | Fluorine-substituted perylenes for colour filters in LCDS | Chemistry; Metallurgy | 14 | Active |
| US6008350A | Process for the production of cyanine dyes | Emerging Cross-Sectional Technologies | 14 | Expired |
| US5800573A | Bulk dyeing using quinophthalone dyestuffs | Chemistry; Metallurgy | 7 | Expired |
| US5530130A | Phthaloperinone dyestuffs | Chemistry; Metallurgy | 7 | Expired |
| US8932786B2 | Metal azo pigments and pigment preparations produced therefrom | Physics | 5 | Active |
| US5525152A | Pigment salts and their use for dyeing and pigmenting | Chemistry; Metallurgy | 5 | Expired |
| US6600589B1 | Electrochromic device with a yellow filter | Emerging Cross-Sectional Technologies | 3 | Expired |
| US5582621A | Bulk dyeing of plastics | Chemistry; Metallurgy | 2 | Expired |
| US9663660B2 | Metal azo pigments | Physics | 1 | Active |
| US6121452A | Process for the preparation of quinophthalones | Chemistry; Metallurgy | 1 | Expired |
| US5639896A | Process for the preparation of N,N'-disubstituted 1,4-diaminoanthraquinones | Chemistry; Metallurgy | 1 | Expired |
| US6846335B2 | Crystal form of a perinone dye | Chemistry; Metallurgy | 0 | Expired |
| US10961396B2 | Methine dyes | Textiles; Paper | 0 | Active |
| US10487211B2 | Methine dyes | Chemistry; Metallurgy | 0 | Active |
| US10808129B2 | Methine dyes | Textiles; Paper | 0 | Active |
| US6420576B1 | Preparation of arylaminohydroxyanthraquinones | Chemistry; Metallurgy | 0 | Expired |
| US10435565B2 | Methine dyes | Chemistry; Metallurgy | 0 | Active |
| US6852873B2 | Preparation of styryl dyes | Chemistry; Metallurgy | 0 | Expired |
| US5874582A | Bulk dyeing using quinophthalone dyestuffs | Chemistry; Metallurgy | 0 | Expired |
| US10266697B2 | Yellow methine dyes | Chemistry; Metallurgy | 0 | Active |
| US5922904A | Bulk dyeing using quinophthalone dyestuffs | Chemistry; Metallurgy | 0 | Expired |
| US12163031B2 | Pigment preparations | Chemistry; Metallurgy | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.