Rudolf Gerken
15Patents
5h-index
22Co-inventors
62Inventor score
Filing activity: Jun 30, 1977 → Jul 12, 1991
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4772757A | Process for the production of nitrobenzene | Chemistry; Metallurgy | 24 | Expired |
| US4663490A | Process for the production of dinitrotoluene | Chemistry; Metallurgy | 10 | Expired |
| US4153628A | Working up spent sulphuric acid simultaneously with sulphate salts | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4663131A | Process for the preparation of titanium dioxide | Emerging Cross-Sectional Technologies | 10 | Expired |
| US5061472A | Process for the concentration of sulphuric acid containing metal sulphates | Emerging Cross-Sectional Technologies | 7 | Expired |
| US4163047A | Process for producing sulfuric acid from waste acid and iron sulfate | Emerging Cross-Sectional Technologies | 5 | Expired |
| US5122358A | Process for the purification of exhaust gases | Chemistry; Metallurgy | 4 | Expired |
| US4670235A | Process for desulphurizing flue gases | Chemistry; Metallurgy | 3 | Expired |
| US4824655A | Process for the preparation of sulphur dioxide | Emerging Cross-Sectional Technologies | 2 | Expired |
| US5229087A | Process for the preparation of titanium dioxide | Chemistry; Metallurgy | 2 | Expired |
| US4952387A | Process for separating metal sulphates from sulphuric acid | Emerging Cross-Sectional Technologies | 2 | Expired |
| US4931269A | Process for the purification and reheating of exhaust gases | Chemistry; Metallurgy | 2 | Expired |
| US4834954A | Process for cleaning flue gases | Mechanical Engineering; Lighting; Heating | 1 | Expired |
| US4880446A | Process for heating up moist gases containing hydrogen halides | Performing Operations; Transporting | 1 | Expired |
| US5271919A | Process for the thermal decomposition of metal sulphates | Emerging Cross-Sectional Technologies | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.