Ernst Billig
33Patents
16h-index
22Co-inventors
77Inventor score
Filing activity: Oct 26, 1979 → Jul 6, 1998
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4769498A | Transition metal complex catalyzed processes | Emerging Cross-Sectional Technologies | 120 | Expired |
| US4668651A | Transition metal complex catalyzed processes | Emerging Cross-Sectional Technologies | 112 | Expired |
| US5288918A | Hydroformylation process | Emerging Cross-Sectional Technologies | 96 | Expired |
| US4599206A | Transition metal complex catalyzed reactions | Emerging Cross-Sectional Technologies | 89 | Expired |
| US4885401A | Bis-phosphite compounds | Emerging Cross-Sectional Technologies | 65 | Expired |
| US4748261A | Bis-phosphite compounds | Emerging Cross-Sectional Technologies | 65 | Expired |
| US4717775A | Transition metal complex catalyzed reactions | Emerging Cross-Sectional Technologies | 64 | Expired |
| US5364950A | Process for stabilizing phosphite ligands in hydroformylation reaction mixtures | Performing Operations; Transporting | 47 | Expired |
| US4835299A | Process for purifying tertiary organophosphites | Chemistry; Metallurgy | 46 | Expired |
| US4283562A | Hydroformylation process using stable rhodium catalyst | Performing Operations; Transporting | 44 | Expired |
| US4400548A | Hydroformylation process using bisphosphine monooxide ligands | Performing Operations; Transporting | 34 | Expired |
| US6090987A | Metal-ligand complex catalyzed processes | Emerging Cross-Sectional Technologies | 29 | Expired |
| US4277627A | Hydroformylation process | Emerging Cross-Sectional Technologies | 27 | Expired |
| US5728893A | Process using multistaged reactors | Emerging Cross-Sectional Technologies | 21 | Expired |
| US5741944A | Hydroformaylation processes | Emerging Cross-Sectional Technologies | 21 | Expired |
| US5874640A | Metal-ligand complex catalyzed processes | Emerging Cross-Sectional Technologies | 18 | Expired |
| US5767321A | Metal-ligand complex catalyzed processes | Emerging Cross-Sectional Technologies | 16 | Expired |
| US4737588A | Transition metal complex catalyzed reactions | Emerging Cross-Sectional Technologies | 16 | Expired |
| US5741942A | Metal-ligand complex catalyzed processes | Emerging Cross-Sectional Technologies | 16 | Expired |
| US5892119A | Metal-ligand complex catalyzed processes | Emerging Cross-Sectional Technologies | 14 | Expired |
| US4789753A | Phosphite ligands | Emerging Cross-Sectional Technologies | 14 | Expired |
| US4605780A | Reactivation of rhodium complex hydroformylation catalysts | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4363764A | Preparation of rhodium complex compounds | Emerging Cross-Sectional Technologies | 9 | Expired |
| US4861918A | Reactivation of hydroformylation catalysts | Emerging Cross-Sectional Technologies | 9 | Expired |
| US4288380A | Heteronuclear-bridged rhodium clusters | Performing Operations; Transporting | 8 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.