Eckhard Ströfer
21Patents
9h-index
64Co-inventors
70Inventor score
Filing activity: Jul 24, 1998 → Feb 10, 2005
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6576788B1 | METHOD FOR PRODUCING MIXTURES CONSISTING OF DIPHENYLMETHANE DIISOCYANATES AND POLYPHENYLENE-POLYMETHYLENE-POLYISOCYANATES CONTAINING A REDUCED AMOUNT OF CHLORINATED SECONDARY PRODUCTS AND WITH A REDUCED IODINE COLOR INDEX | Chemistry; Metallurgy | 33 | Expired |
| US6433219B1 | Method for the production of methylenedi(phenylamine and methylenedi(phenyl isocyanate) | Chemistry; Metallurgy | 32 | Expired |
| US7230130B2 | Process for preparing methylenedianiline and methylenebis (phenylisocyanate) | Chemistry; Metallurgy | 15 | Expired |
| US6916953B2 | Integrated process for preparing isocyanates | Emerging Cross-Sectional Technologies | 15 | Expired |
| US6350911B1 | Method for producing amines | Performing Operations; Transporting | 14 | Expired |
| US6299734A | Preparation of an aqueous solution of free hydroxylamine | Chemistry; Metallurgy | 12 | Expired |
| US6831192B2 | Process for preparing methylenedianiline and methylenebis(phenyl isocyanate) | Chemistry; Metallurgy | 11 | Expired |
| US6610888B1 | Reaction of a solution comprising a mixture | Chemistry; Metallurgy | 10 | Expired |
| US6673960B1 | Work-up of distillation residues from the synthesis of toluene diisocyanate | Chemistry; Metallurgy | 9 | Expired |
| US6758990B2 | Stabilizing agent for hydroxylamine solutions | Chemistry; Metallurgy | 3 | Expired |
| US6962682B2 | Fixed-bed process for producing chlorine by catalytic gas-phase oxidation of hydrogen chloride | Performing Operations; Transporting | 3 | Expired |
| US6153799A | Method for producing highly pure aqueous hydroxylamine solutions | Chemistry; Metallurgy | 3 | Expired |
| US7029557B2 | Method for producing an aqueous hydroxylamine solution devoid of salt | Emerging Cross-Sectional Technologies | 1 | Expired |
| US7381851B2 | Method for producing formaldehyde | Mechanical Engineering; Lighting; Heating | 1 | Expired |
| US7193115B2 | Highly concentrated formaldehyde solution, production and reaction thereof | Chemistry; Metallurgy | 1 | Expired |
| US7713387B2 | Method for separating trioxane from a trioxane/formaldehyde/water mixture by means of pressure change rectification | Chemistry; Metallurgy | 1 | Active |
| US7342139B2 | Method for producing highly concentrated formaldehyde solution | Chemistry; Metallurgy | 1 | Expired |
| US7544832B2 | Reaction column in a special combination with a natural circulation evaporator | Performing Operations; Transporting | 0 | Expired |
| US7431804B2 | Method for carrying out the distillation or reactive distillation of a mixture containing at least one toxic constituent | Emerging Cross-Sectional Technologies | 0 | Expired |
| US7105078B2 | Method for producing an aqueous hydroxylamine solution devoid of salt | Emerging Cross-Sectional Technologies | 0 | Expired |
| US6942762B2 | Method for the production of a salt-free aqueous hydroxylamine solution | Emerging Cross-Sectional Technologies | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.