John C. Sih
264Patents
9h-index
12Co-inventors
77Inventor score
Filing activity: Jul 14, 1977 → Oct 13, 2000
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6121451A | Intermediates and process for the manufacture of camptothecin derivatives (CPT-11) and related compounds | Chemistry; Metallurgy | 39 | Expired |
| US4225508A | 19-Hydroxy-PGI.sub.2 compounds | Chemistry; Metallurgy | 28 | Expired |
| US5912349A | Process for the preparation of roquinimex | Chemistry; Metallurgy | 24 | Expired |
| US4225507A | 19-Hydroxy-19-methyl-PGI.sub.2 compounds | Chemistry; Metallurgy | 20 | Expired |
| US4281113A | 2,5-Inter-o-phenylene-3,4-dinor-6,9.alpha.-epoxy-6.be ta.-5-iodo-PGF.sub.1 compounds | Chemistry; Metallurgy | 17 | Expired |
| US5245046A | .alpha.-amino-indole-3-acetic acids useful as anti-diabetic, anti-obesity and anti-atherosclerotic agents | Chemistry; Metallurgy | 15 | Expired |
| US4180657A | Acyl-substituted phenyl esters of prostacyclin-type compounds | Chemistry; Metallurgy | 12 | Expired |
| US4873337A | N-substituted derivatives of 2-(pyridylalkenesulfinyl) benzimidazoles as gastric antisecretory agents | Chemistry; Metallurgy | 11 | Expired |
| US4611059A | Pyridyl-substituted benzothiophenes | Chemistry; Metallurgy | 10 | Expired |
| US4575554A | Substituted 2-pyridylmethylthio- and sulfinyl-benzimidazoles as gastric antisecretory agents | Human Necessities | 8 | Expired |
| US4288616A | 13,14-Didehydro-11-deoxy-11-hydroxymethyl-19-oxo-PGF.sub.2 compounds | Chemistry; Metallurgy | 8 | Expired |
| US4447620A | Imidazolyl-substituted benzothiophenes | Chemistry; Metallurgy | 7 | Expired |
| US6444820B1 | Process for the manufacture of camptothecin derivatives | Chemistry; Metallurgy | 6 | Expired |
| US4619997A | Substituted 2-pyridylmethylthio and sulfinyl-benzimidazoles as gastric antisecretory agents | Chemistry; Metallurgy | 5 | Expired |
| US5077407A | Substituted 2-[monoannelated (3,4-,4,5-, and 5,6-) pyridylalkylenesulfinyl]benzimidazoles | Chemistry; Metallurgy | 5 | Expired |
| US4533749A | 9-Substituted carbacyclin analogs | Chemistry; Metallurgy | 3 | Expired |
| US4262131A | 19-Hydroxy-inter-phenylene-PG.sub.1 componds | Chemistry; Metallurgy | 3 | Expired |
| US6235907A | Intermediates useful in making mappicine and related compounds | Chemistry; Metallurgy | 3 | Expired |
| US4110532A | 5-Hydroxy-PGI.sub.1 compounds | Human Necessities | 2 | Expired |
| US4259516A | 19-Hydroxy-inter-oxa-13,14-dihydro-PG.sub.1 compounds | Chemistry; Metallurgy | 2 | Expired |
| US4312810A | 2,5-Inter-o-phenylene-3,4-dinor-5,9.alpha.-epoxy-9-deoxy-PGF.sub.1 compounds | Chemistry; Metallurgy | 2 | Expired |
| US4170703A | 5-Hydroxy-PGI.sub.1 morpholinylamides | Chemistry; Metallurgy | 1 | Expired |
| US4336393A | 2-Decarboxy-2-tetrazolyl-13,14-dihydro-PG.sub.1 compounds | Chemistry; Metallurgy | 1 | Expired |
| US4293710A | 13,14-Dihydro-11-deoxy-11-hydroxymethyl-19-oxo-PGF.sub.2 compounds | Chemistry; Metallurgy | 1 | Expired |
| US4236019A | Esters of prostacyclin-type compounds | Chemistry; Metallurgy | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.