Gunter Lailach
27Patents
7h-index
32Co-inventors
69Inventor score
Filing activity: Dec 30, 1974 → Jun 22, 2001
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4772757A | Process for the production of nitrobenzene | Chemistry; Metallurgy | 24 | Expired |
| US4186028A | Fluid pigment suspensions with phosphonocarboxylic acids | Chemistry; Metallurgy | 20 | Expired |
| US4663490A | Process for the production of dinitrotoluene | Chemistry; Metallurgy | 10 | Expired |
| US4663131A | Process for the preparation of titanium dioxide | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4038364A | Reduction of iron in titanium ore | Emerging Cross-Sectional Technologies | 9 | Expired |
| US5094834A | Process for the production of TiO.sub.2 pigments | Chemistry; Metallurgy | 8 | Expired |
| US5061472A | Process for the concentration of sulphuric acid containing metal sulphates | Emerging Cross-Sectional Technologies | 7 | Expired |
| US5837635A | Process for producing mixed oxide powders from deactivated denox catalysts | Emerging Cross-Sectional Technologies | 6 | Expired |
| US6530987B1 | Method for producing iron oxide pigments from waste acid resulting from TiO2 production | Chemistry; Metallurgy | 5 | Expired |
| US6440377B1 | Method for reprocessing waste acid resulting from TiO2 production | Chemistry; Metallurgy | 4 | Expired |
| US4731230A | Process for the preparation of TiCl.sub.4 | Emerging Cross-Sectional Technologies | 4 | Expired |
| US5122358A | Process for the purification of exhaust gases | Chemistry; Metallurgy | 4 | Expired |
| US4670235A | Process for desulphurizing flue gases | Chemistry; Metallurgy | 3 | Expired |
| US4902485A | Process for the production of titanium dioxide pigments | Emerging Cross-Sectional Technologies | 3 | Expired |
| US4988495A | Process for the recorvery of sulphuric acid in the production of titanium dioxide | Chemistry; Metallurgy | 3 | Expired |
| US4931269A | Process for the purification and reheating of exhaust gases | Chemistry; Metallurgy | 2 | Expired |
| US4952387A | Process for separating metal sulphates from sulphuric acid | Emerging Cross-Sectional Technologies | 2 | Expired |
| US5229087A | Process for the preparation of titanium dioxide | Chemistry; Metallurgy | 2 | Expired |
| US4824655A | Process for the preparation of sulphur dioxide | Emerging Cross-Sectional Technologies | 2 | Expired |
| US6395165B2 | Process for preparing perfluorinated organic compounds by electrochemical fluorination | Chemistry; Metallurgy | 2 | Expired |
| US4880446A | Process for heating up moist gases containing hydrogen halides | Performing Operations; Transporting | 1 | Expired |
| US4797163A | Process for the production of titanium dioxide pigments | Emerging Cross-Sectional Technologies | 1 | Expired |
| US4834954A | Process for cleaning flue gases | Mechanical Engineering; Lighting; Heating | 1 | Expired |
| US6416723B1 | Method for reprocessing waste acid to form gypsum and iron oxide | Chemistry; Metallurgy | 0 | Expired |
| US6106794A | Process for the preparation of sodium fluoride | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.