Fritz Meininger
39Patents
12h-index
23Co-inventors
77Inventor score
Filing activity: Aug 18, 1972 → Mar 29, 1988
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4649193A | Water-soluble dyestuffs containing fibre-reactive groups of the vinylsulfone series and the fluoro-s-triazinyl-amino series | Chemistry; Metallurgy | 34 | Expired |
| US4134887A | Phenyl-azo-phenyl dyestuffs | Chemistry; Metallurgy | 20 | Expired |
| US4323497A | Water-soluble disazo dyestuffs | Chemistry; Metallurgy | 19 | Expired |
| US4074967A | Dyestuff preparations for dyeing and printing natural and synthetic polyamide fibre materials | Emerging Cross-Sectional Technologies | 19 | Expired |
| US4066638A | Water-soluble fiber reactive phenyl-azo-naphthyl dyestuffs containing two sulfo groups in the phenyl moiety | Chemistry; Metallurgy | 18 | Expired |
| US4036825A | Monoazo reactive dyestuffs | Chemistry; Metallurgy | 18 | Expired |
| US4485041A | Water-soluble metal free or copper triazino-bis-[hydroxy-naphthylamino]-disazo dyestuffs containing fiber reactive groups, and a process for dyeing or printing cellulose fibers | Chemistry; Metallurgy | 18 | Expired |
| US4515598A | Process for dyeing and printing fiber materials containing hydroxy and/or carbonamide groups with reactive dye containing both vinyl sulphonyl and fluoro-triazinyl groups | Emerging Cross-Sectional Technologies | 17 | Expired |
| US4378312A | Water-soluble azo dyestuffs | Emerging Cross-Sectional Technologies | 14 | Expired |
| US4693726A | Process for dyeing or printing cellulose fibers or cellulose blend fibers with pyridinium-triazine reactive dye, axable without alkali | Emerging Cross-Sectional Technologies | 14 | Expired |
| US4725675A | Water-soluble phenyl-azo-naphthyl compounds, suitable as dyestuffs, containing a chloro-triazinylamino group and a fiber-reactive group of the vinylsulfone type | Chemistry; Metallurgy | 13 | Expired |
| US4622390A | Water-soluble disazo compounds containing an amino naphthol-disulfonic acid moiety as a coupling component and fibre-reactive groups | Chemistry; Metallurgy | 12 | Expired |
| US4730038A | Water-soluble disazo compounds of 1-amino-8-naphthal-3,6- or 4,6-disulfonic acid as bivalent coupling component, containing fiber-reactive groups suitable as dyestuffs | Chemistry; Metallurgy | 11 | Expired |
| US4430259A | Water-soluble disazo compounds suitable as fiber-reactive dyestuffs | Chemistry; Metallurgy | 11 | Expired |
| US4046754A | Water-soluble naphyhyl-azo-pyrazolone fiber reactive dyestuffs | Chemistry; Metallurgy | 10 | Expired |
| US4088441A | Dyestuff composition for the dyeing or printing of cellulose fiber materials | Textiles; Paper | 8 | Expired |
| US4033980A | Phthalocyanine dyestuffs and process for preparing them | Chemistry; Metallurgy | 8 | Expired |
| US4492654A | Water-soluble azo compounds, a process for their preparation and their use as dyes | Chemistry; Metallurgy | 7 | Expired |
| US4707545A | Process for the preparation of lithium salts of anionic dyes by reacting the calcium salts with lithium sulfate or lithium hydrogen sulfate | Chemistry; Metallurgy | 7 | Expired |
| US3939140A | Process for the preparation of a dyestuff consisting substantially of only unsymmetrical 1:2-chromium complex azo dyestuffs | Chemistry; Metallurgy | 7 | Expired |
| US4769446A | Fiber-reactive red azo dyestuff | Chemistry; Metallurgy | 7 | Expired |
| US4242258A | Water-soluble dyestuffs, processes for their manufacture, their use as fiber-reactive dyestuffs for dyeing and printing fiber materials and the fiber materials dyed with these dyestuffs | Chemistry; Metallurgy | 7 | Expired |
| US4139527A | Fiber reactive monoazo dyestuffs containing a --SO.sub.2 --CH.sub.2 --CH.sub.2 --O--PO.sub.3 H.sub.2 group | Chemistry; Metallurgy | 6 | Expired |
| US4939243A | Water-soluble copper complex disazo compounds containg a chloro triazinylamino group and a group of the vinylsulfone series as fiber-reactive groups and their dyestuffs | Chemistry; Metallurgy | 6 | Expired |
| US4442288A | Anthraquinone compounds | Chemistry; Metallurgy | 5 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.