Harro Witt
7Patents
5h-index
10Co-inventors
56Inventor score
Filing activity: Mar 12, 1985 → Apr 2, 1997
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4792626A | Production of aromatic diamino compounds using a modified Raney catalyst | Chemistry; Metallurgy | 32 | Expired |
| US4663490A | Process for the production of dinitrotoluene | Chemistry; Metallurgy | 10 | Expired |
| US5779995A | Sludge phase reactor and process for performing sludge phase reactions | Performing Operations; Transporting | 10 | Expired |
| US5728880A | Process for the separation of high-boiling materials from the reaction mixture generated during the production of diaminotoluene | Chemistry; Metallurgy | 9 | Expired |
| US4720326A | Process for working-up aqueous amine solutions | Emerging Cross-Sectional Technologies | 8 | Expired |
| US5001286A | Process for separating sulphuric acid and nitric acid from dinitrotoluene mixtures obtained during the nitration of toluene | Chemistry; Metallurgy | 5 | Expired |
| US4857281A | Pauling boiler and process for the concentration of sulphuric acid | Chemistry; Metallurgy | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.