Eckhard Stroefer
69Patents
7h-index
145Co-inventors
75Inventor score
Filing activity: Jul 15, 1986 → Nov 8, 2017
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7584629B2 | Separation of a substance mixture consisting of hydrogen chloride and phosgene | Emerging Cross-Sectional Technologies | 38 | Expired |
| US7754900B2 | Method for the production of dioxolane | Emerging Cross-Sectional Technologies | 14 | Active |
| US7084297B2 | Production of isocyanates in the gaseous phase | Chemistry; Metallurgy | 11 | Expired |
| US7851648B2 | Method for the continuous production of isocyanates | Chemistry; Metallurgy | 9 | Active |
| US7358388B2 | Method for the purification of isocyanates | Chemistry; Metallurgy | 8 | Expired |
| US7524405B2 | Method for separating out solvent from a reaction mixture resulting from an isocyanate synthesis and for purifying this solvent | Emerging Cross-Sectional Technologies | 8 | Expired |
| US7414159B2 | Separation of liquid mixtures in a film evaporator | Chemistry; Metallurgy | 7 | Expired |
| US8088944B2 | Method for the purification of isocyanates | Chemistry; Metallurgy | 7 | Active |
| US7915444B2 | Method for producing diisocyanates | Chemistry; Metallurgy | 7 | Active |
| US8258337B2 | Method for producing isocyanates | Performing Operations; Transporting | 7 | Active |
| US7235697B2 | Use of H2S-containing offgas streams for preparing sulfur-containing products | Chemistry; Metallurgy | 7 | Expired |
| US7112694B2 | Method for producing isocyanates | Chemistry; Metallurgy | 7 | Expired |
| US7592479B2 | Reprocessing of reaction material discharged from phosgenation reactors | Chemistry; Metallurgy | 6 | Expired |
| US8288584B2 | Process for preparing isocyanates | Chemistry; Metallurgy | 5 | Active |
| US8044166B2 | Process for preparing pentamethylene 1,5-diisocyanate | Chemistry; Metallurgy | 4 | Active |
| US7927080B2 | Method for operating a liquid ring compressor | Mechanical Engineering; Lighting; Heating | 4 | Active |
| US6833469B2 | Method for producing isocynates | Chemistry; Metallurgy | 4 | Expired |
| US7342134B2 | Method for the distillative recovery of toluylenediamine | Chemistry; Metallurgy | 4 | Expired |
| US7671240B2 | Method for producing polyoxymethylene dimethyl ethers from methanol and formaldehyde | Chemistry; Metallurgy | 4 | Active |
| US7700809B2 | Process for preparing polyoxymethylene dimethyl ethers from methanol and formaldehyde | Chemistry; Metallurgy | 3 | Active |
| US7659430B2 | Method for separating hydrogen chloride and phosgene | Performing Operations; Transporting | 3 | Expired |
| US8546606B2 | Method for producing polyisocyanates | Performing Operations; Transporting | 3 | Active |
| US8829232B2 | Process for preparing aromatic isocyanates | Chemistry; Metallurgy | 3 | Active |
| US8193385B2 | Method for producing isocyanates | Chemistry; Metallurgy | 2 | Active |
| US8026387B2 | Method for producing isocyanates | Chemistry; Metallurgy | 2 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.