Hasso Hertel
19Patents
3h-index
10Co-inventors
53Inventor score
Filing activity: Oct 9, 1973 → Oct 12, 1988
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US3961884A | Process for dyeing textile material of polyester fiber/cellulose blends | Textiles; Paper | 5 | Expired |
| US4094637A | Process for the printing with developing dyes | Emerging Cross-Sectional Technologies | 5 | Expired |
| US3961886A | Process for the dyeing and printing of cellulose-containing textile materials | Textiles; Paper | 4 | Expired |
| US4331443A | Concentrated solutions of water-insoluble coupling components | Chemistry; Metallurgy | 3 | Expired |
| US4082503A | Process for the production of water-insoluble azo dyestuffs on the fiber | Textiles; Paper | 3 | Expired |
| US3961887A | Process for the printing of cellulose containing textile material | Emerging Cross-Sectional Technologies | 3 | Expired |
| US4306876A | Aqueous dispersions of primary aromatic amines, their use for the production of water-insoluble azo dyes on the fiber and the use of an anionic surfactant for the manufacture of said dispersions | Chemistry; Metallurgy | 3 | Expired |
| US4224027A | Process for the production of water-insoluble azo dyestuffs on the fiber with polyphosphate | Textiles; Paper | 2 | Expired |
| US4078887A | Concentrated stable solutions of coupling components for the ice color dyeing, their preparation and use | Textiles; Paper | 2 | Expired |
| US4035144A | Dyeing preparations containing boric acid for preparing water-insoluble azo dyestuffs on fiber | Textiles; Paper | 2 | Expired |
| US3990985A | Stable and storable aqueous dispersions of primary aromatic amines, their preparation and use | Chemistry; Metallurgy | 1 | Expired |
| US4368054A | Compositions of nitro-anilines for producing azo dyes on fibers | Chemistry; Metallurgy | 1 | Expired |
| US4599450A | Process for the preparation of acid nitro dyestuffs | Textiles; Paper | 1 | Expired |
| US4195973A | Process for printing with developing dyes which employs having ether substituents derived from glycols, polyglycols, or alkoxy derivatives thereof | Chemistry; Metallurgy | 1 | Expired |
| US4696675A | Process for preparing water-insoluble blue azo dyes on the fiber: hydroxynaphthoic amide and diazotized di-alkoxy-benzidine | Emerging Cross-Sectional Technologies | 0 | Expired |
| US4987221A | Bisdiazonium salts of 4,4'-diamino-3,3'-dialkoxybiphenyls and a process for their preparation | Textiles; Paper | 0 | Expired |
| US4183727A | Process for the production of water-insoluble azo dyestuffs on the fiber | Textiles; Paper | 0 | Expired |
| US4591359A | Process for preparing acid nitro dyestuffs for leather | Chemistry; Metallurgy | 0 | Expired |
| US4906250A | Process for the preparation of water-insoluble azo dyes on the fiber: impregnating with coupling component and treating with diazonium salt of 4-chloro-2,5-dialkoxy aniline | Emerging Cross-Sectional Technologies | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.