Ivan Ernest
12Patents
7h-index
8Co-inventors
55Inventor score
Filing activity: Dec 2, 1976 → Aug 21, 1989
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4614614A | Process for the manufacture of optically active azetidinones | Emerging Cross-Sectional Technologies | 28 | Expired |
| US4070477A | 2-Penem compounds | Emerging Cross-Sectional Technologies | 13 | Expired |
| US4500457A | Process for preparing thia-aza compounds with a beta-lactam ring | Chemistry; Metallurgy | 12 | Expired |
| US4331676A | Thia-aza compounds with a .beta.-lactam ring | Chemistry; Metallurgy | 10 | Expired |
| US4692442A | 6-substituted penem compounds | Chemistry; Metallurgy | 9 | Expired |
| US4952690A | 6-substituted thia-aza compounds | Chemistry; Metallurgy | 8 | Expired |
| US4649215A | Aliphatic thioethers | Human Necessities | 7 | Expired |
| US4524028A | Monocyclic intermediates for thia-aza compounds with a .beta.-lactam ring | Chemistry; Metallurgy | 5 | Expired |
| US4364865A | Bicyclic unsaturated thia-aza compounds and 4-acylthio azetidinone intermediates | Emerging Cross-Sectional Technologies | 3 | Expired |
| US4518533A | Azetidinone-4-disulfides as intermediates for thia-aza compounds with a beta-lactam ring | Chemistry; Metallurgy | 1 | Expired |
| US4515717A | Thia-aza compounds with a .beta.-lactam ring | Chemistry; Metallurgy | 1 | Expired |
| US4447360A | Intermediates for thia-aza compounds with a .beta.-lactam ring | Chemistry; Metallurgy | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.