Sumio Watanabe
19Patents
9h-index
31Co-inventors
72Inventor score
Filing activity: Mar 11, 1975 → Apr 14, 2000
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5093200A | Multilayer sustained release granule | Emerging Cross-Sectional Technologies | 67 | Expired |
| US4844905A | Granule remaining in stomach | Human Necessities | 66 | Expired |
| US3976764A | Solid therapeutic preparation remaining in stomach | Human Necessities | 57 | Expired |
| US4127622A | Process for the preparation of hollow particulates | Human Necessities | 40 | Expired |
| US5035899A | Peroral preparation of acid-unstable compound | Human Necessities | 31 | Expired |
| US5984123A | Container having screw-threaded captive cap | Performing Operations; Transporting | 29 | Expired |
| US6235724A | Injections containing lipid a analogues and process for the preparation thereof | Human Necessities | 25 | Expired |
| US5120719A | Conjugate of prostaglandin and polysaccharide | Human Necessities | 20 | Expired |
| US5980947A | Process for producing drug-containing microspheres by oil-in-water evaporation process | Human Necessities | 11 | Expired |
| US5306505A | Plasma-irradiated solid preparation | Human Necessities | 8 | Expired |
| US6036974A | Method and apparatus for preparation of molded tablet and thereby prepared molded tablet | Performing Operations; Transporting | 8 | Expired |
| US5576021A | Sustained-release multi-granule tablet | Human Necessities | 5 | Expired |
| US5030455A | Sustained-release drug preparation | Human Necessities | 3 | Expired |
| US5624683A | Sustained-release multi-granule tablet | Human Necessities | 3 | Expired |
| US5254545A | Injectable preparations containing cephalosporin medicament | Human Necessities | 3 | Expired |
| US5889078A | Organic polymer compound and production therof | Chemistry; Metallurgy | 1 | Expired |
| US5821281A | Organic polymer compound and production thereof | Chemistry; Metallurgy | 0 | Expired |
| US5425943A | Modified tPA-containing injection composition having increased solubility | Human Necessities | 0 | Expired |
| US7230014B1 | Pharmaceutical formulation comprising glycine as a stabilizer | Human Necessities | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.