Willi Steckelberg
23Patents
6h-index
28Co-inventors
69Inventor score
Filing activity: Oct 19, 1973 → Feb 6, 1995
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5383961A | Water-soluble sulphur dyes, their preparation and use | Chemistry; Metallurgy | 48 | Expired |
| US5530093A | Polycondensates containing phosphinic and phosphonic acid groups | Textiles; Paper | 20 | Expired |
| US4134970A | Quaternary ammonium compounds and their use in hair care compositions | Chemistry; Metallurgy | 16 | Expired |
| US4118324A | Fabric softeners | Textiles; Paper | 12 | Expired |
| US4595628A | Soil repellent fluorinated esters of multi-ring anhydride systems | Emerging Cross-Sectional Technologies | 11 | Expired |
| US4871754A | Aqueous formulation of 1,2-benzisothiazolin-3-one | Human Necessities | 10 | Expired |
| US3930794A | Process for the dyeing of synthetic fiber materials from organic solvents | Emerging Cross-Sectional Technologies | 5 | Expired |
| US3930793A | Process for the dyeing of synthetic fiber materials from organic solvents | Emerging Cross-Sectional Technologies | 3 | Expired |
| US4881977A | Water-soluble yellow monoazo dyestuffs | Chemistry; Metallurgy | 3 | Expired |
| US4472466A | Soil repellent fluorinated esters of multi-ring anhydride systems | Emerging Cross-Sectional Technologies | 3 | Expired |
| US5110917A | Water-soluble trisazo dyes | Chemistry; Metallurgy | 3 | Expired |
| US5374302A | Water-insoluble sulphur dyes, their preparation and use | Chemistry; Metallurgy | 2 | Expired |
| US4100078A | Secondary etheramine acetates and their use as lubricating agents for synthetic fibers | Chemistry; Metallurgy | 2 | Expired |
| US5492995A | Polycondensates containing phosphinic or phosphonic acid groups and siloxane groups | Chemistry; Metallurgy | 2 | Expired |
| US5368637A | Water-insoluble sulphur dyes, their preparation and use | Chemistry; Metallurgy | 1 | Expired |
| US5174791A | Process for dyeing and printing blend fabrics of polyester and natural fibre materials with disperse dye and polyether-polyester to inhibit soilins with disperse dye | Textiles; Paper | 1 | Expired |
| US4293306A | Process for the dyeing and printing of hydrophobic synthetic organic fiber materials with water-insoluble azo dyestuffs | Textiles; Paper | 1 | Expired |
| US5414128A | Process for the preparation of N-substituted nitro-p-phenylenediamines | Chemistry; Metallurgy | 1 | Expired |
| US5387716A | N4-substituted 1-alkoxy-2-acylamino-4-aminobenzenes, process for their preparation and their use | 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 |
| US4918221A | Process for preparing 2,5-dichlorophenylthioglycollic acid | Chemistry; Metallurgy | 0 | Expired |
| US3961885A | Process for the dyeing of synthetic fibrous materials from organic solvents using azo dyes | Emerging Cross-Sectional Technologies | 0 | Expired |
| US3930791A | Process for the dyeing of synthetic fibrous material from organic solvents | Emerging Cross-Sectional Technologies | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.