Konrad Opitz
21Patents
8h-index
25Co-inventors
71Inventor score
Filing activity: Apr 7, 1975 → Nov 10, 1992
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4072463A | Liquid preparations of reactive dyestuffs | Textiles; Paper | 22 | Expired |
| US4149850A | Liquid preparations of reactive dyestuffs | Textiles; Paper | 15 | Expired |
| US4078885A | Stable liquid water-containing dyeing compositions containing disperse and reactive dyestuffs and their use for dyeing or printing mixed fibre materials | Textiles; Paper | 11 | Expired |
| US4581036A | Process for preparing liquid low-salt aqueous reactive dyestuff compositions | Chemistry; Metallurgy | 11 | Expired |
| US4319880A | Monoazo dyestuff being stable under dyeing conditions; its manufacture and its use | Chemistry; Metallurgy | 10 | Expired |
| US4286960A | Dyestuff compositions containing acylated alkoxylates of polyhydric aliphatic alcohols | Textiles; Paper | 9 | Expired |
| US4078884A | Liquid preparations of reactive dyestuffs | Chemistry; Metallurgy | 9 | Expired |
| US4443224A | Liquid reactive dyestuff preparations and their use | Emerging Cross-Sectional Technologies | 9 | Expired |
| US4589885A | Liquid reactive dyestuff formulations and their use | Chemistry; Metallurgy | 8 | Expired |
| US4118184A | Stable liquid aqueous composition of a water-soluble fiber-reactive azo dyestuff, containing a buffer substance, the dyestuff having been prepared by diazotization with a nitrite and coupling in the absence of acid | Chemistry; Metallurgy | 7 | Expired |
| US4389213A | Use of esterified oxalkylates as formulation agents for dyestuffs and corresponding dyestuff preparations | Textiles; Paper | 6 | Expired |
| US4113429A | Preparation of a disperse dyestuff containing a phosphoric acid ester, having improved safety properties and higher dyestuff yield when dyed on synthetic materials | Chemistry; Metallurgy | 6 | Expired |
| US5366512A | Low-dust or dust-free dye preparations | Chemistry; Metallurgy | 4 | Expired |
| US4585459A | Process for preparing liquid low-salt aqueous reactive dyestuff compositions | Chemistry; Metallurgy | 4 | Expired |
| US4333732A | Dyestuff preparations containing oxalkylates of modified natural rosin acids | Emerging Cross-Sectional Technologies | 4 | Expired |
| US4145182A | Process for the preparation of disperse dyes having good printing properties for transfer printing | Textiles; Paper | 3 | Expired |
| US4420310A | Use of oxyalkylated novolaks as preparation agents for disperse dyestuffs and preparations made with said agents | Textiles; Paper | 3 | Expired |
| US5011917A | Process for preparing a stabilized composition of a lithium azo compound | Chemistry; Metallurgy | 3 | Expired |
| US4336025A | Composition containing colorants and esterified oxalkylates of aromatic hydroxy compounds | Chemistry; Metallurgy | 3 | Expired |
| US4939242A | Process for the preparation of the lithium salt of a fiber-reactive azo dyestuff | Chemistry; Metallurgy | 0 | Expired |
| US5037962A | .beta.-modification of 1-(2,4-dinitro-6-chloro-phenylazo)-2-propionylamino-4-N-ethylamino-5-(2- methoxy-ethoxy)benzene, its preparation and its use | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.