Georg Henning
22Patents
9h-index
26Co-inventors
75Inventor score
Filing activity: May 29, 1975 → Dec 13, 2007
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5472494A | Pigment preparation with perylene derivatives as dispersants | Chemistry; Metallurgy | 37 | Expired |
| US6184378A | 1,7-disubstituted perylene-3,4,9,10-tetracarboxylic acids, their dianhydrides and diimides | Chemistry; Metallurgy | 23 | Expired |
| US6326494A | 1,7-Diaroxy- or 1,7-arylthio-substituted perylene-3,4,9,10-tetracarboxylic acids, their dianhydrides and diimides | Chemistry; Metallurgy | 22 | Expired |
| US6143905A | 1,7-diaroxy- or 1,7-arylthio-substituted perylene-3,4,9,10-tetracarboxylic acids, their dianhydrides and diimides | Chemistry; Metallurgy | 20 | Expired |
| US4594411A | Sulfonated monoazo colorant lake obtained by di-azo coupling of 5-acetylamino-2-aminobenzene-1-sulfonic acid with 1-(3'-sulfophenyl)-3-methylphyrazol-5-one | Emerging Cross-Sectional Technologies | 16 | Expired |
| US6063181A | 1,7-disubstituted perylene-3,4,9, 10-tetracarboxylic acids, their dianhydrides and diimides of said acids | Chemistry; Metallurgy | 14 | Expired |
| US4846892A | Tetrachloroperylene-3,4,9,10-tetracarboxylic acid diimide pigment and its use | Chemistry; Metallurgy | 13 | Expired |
| US6136976A | Process for producing perylene-3, 4-dicarboxylic acid imides | Chemistry; Metallurgy | 10 | Expired |
| US4316023A | Isoindoline colorants | Chemistry; Metallurgy | 9 | Expired |
| US4014866A | Barium laked phenylazonaphthalene dye containing sulfonic acid groups | Chemistry; Metallurgy | 8 | Expired |
| US6084099A | Preparation of N,N'-dialkylperylene-3,4,9,10-tetracarboxylic acid diimides | Chemistry; Metallurgy | 8 | Expired |
| US6099636A | N,N'-dimethylperylene-3,4,9,10-tetracarboxylic acid diimide pigments suitable for water-based paints | Chemistry; Metallurgy | 7 | Expired |
| US5131981A | Coloring paper | Textiles; Paper | 6 | Expired |
| US4248635A | High-hiding calcium color lakes having great full-shade brillance and improved lightfastness | Emerging Cross-Sectional Technologies | 5 | Expired |
| US4599113A | Isoindoline pigment having a high color strength | Chemistry; Metallurgy | 4 | Expired |
| US4645539A | Transparent isoindoline pigment having a high color strength | Chemistry; Metallurgy | 3 | Expired |
| US5320647A | Fluent polyazo dye preparations and method of dying leather or wool therewith | Emerging Cross-Sectional Technologies | 3 | Expired |
| US5484901A | Isoindolineazo pigments | Chemistry; Metallurgy | 2 | Expired |
| US4264488A | Coloring of thermoplastics | Chemistry; Metallurgy | 2 | Expired |
| US4354969A | Dye mixtures | Chemistry; Metallurgy | 1 | Expired |
| US7807836B2 | Preparation of perylen-3,4:9,10-tetracarboxylic dianhydride and also of naphtalene-1,8-dicarboximides | Chemistry; Metallurgy | 0 | Active |
| US7393956B2 | Method for the production of perylen-3,4:9,10-tetracarboxylic acid diimides and perylen-3,4:9,10-tetracarboxylic acid dianhydride and naphtalene-1,8-dicarboxylimides | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.