Christian Steffens
10Patents
2h-index
29Co-inventors
50Inventor score
Filing activity: Sep 7, 2001 → Nov 8, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US8079752B2 | Process and mixing unit for the preparation of isocyanates by phosgenation of primary amines | Performing Operations; Transporting | 31 | Active |
| US7368595B2 | Process for the production of light-colored isocyanates | Chemistry; Metallurgy | 2 | Active |
| US9272988B2 | Method for producing diisocyanates by phosgenating diamine suspensions | Chemistry; Metallurgy | 2 | Active |
| US6566298B2 | Diphosphines | Performing Operations; Transporting | 1 | Expired |
| US6844462B2 | Biphenydiols | Performing Operations; Transporting | 1 | Expired |
| US6462200B2 | Diphosphines | Performing Operations; Transporting | 0 | Expired |
| US10112892B2 | Process for preparing polyisocyanates | Chemistry; Metallurgy | 0 | Active |
| US10851048B2 | Process for preparing an isocyanate by partly adiabatically operated phosgenation of the corresponding amine | Chemistry; Metallurgy | 0 | Active |
| US10815193B2 | Process for providing hydrogen chloride for chemical reactions | Chemistry; Metallurgy | 0 | Active |
| US10875827B2 | Process for preparing an isocyanate by partly adiabatic phosgenation of the corresponding amine | Chemistry; Metallurgy | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.