Choong Eui Song
9Patents
5h-index
15Co-inventors
60Inventor score
Filing activity: Jun 2, 1989 → Jan 18, 2011
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5219474A | Liquid fire extinguishing composition | Human Necessities | 16 | Expired |
| US4999443A | Transition metal complexes | Chemistry; Metallurgy | 9 | Expired |
| US5145993A | Process for preparing D-2-(6-methoxy-2-naphthyl)-propionic acid and intermediate thereof | Chemistry; Metallurgy | 7 | Expired |
| US5103065A | Transition metal complexes as catalysts for hydrogenation hydroformylation and cyclotrimerization | Chemistry; Metallurgy | 7 | Expired |
| US5179208A | Process for preparing d-2-(6-methoxy-2-naphthyl)-propionic acid and intermediate thereof | Chemistry; Metallurgy | 6 | Expired |
| US6197994A | Silica gel supported bis-cinchona alkaloid derivatives and a preparation method and use thereof | Chemistry; Metallurgy | 2 | Expired |
| US5968867A | Silica gel supported bis-cinchona alkaloid derivatives and a preparation method and use thereof | Chemistry; Metallurgy | 1 | Expired |
| US5994556A | Bis(ortho-diarylphosphinophenyl)-tetrahydro-bi(1,3-oxazole) and a preparation method thereof | Chemistry; Metallurgy | 0 | Expired |
| US8580964B2 | Cinchona-based bifucntional organocatalysts and method for preparing chiral hemiesters using the same | Chemistry; Metallurgy | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.