Percy Sarwood Manchand
20Patents
5h-index
25Co-inventors
69Inventor score
Filing activity: Nov 17, 1976 → Dec 13, 2012
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4900828A | Intermediate compounds and an improved procedure for the synthesis of 2',3'-dideoxycytidine | Emerging Cross-Sectional Technologies | 34 | Expired |
| US5872113A | Fluorinated vitamin D3 analogs | Chemistry; Metallurgy | 17 | Expired |
| US4147708A | Preparation of carotenoids using a .pi.-allyl complex | Chemistry; Metallurgy | 14 | Expired |
| US4115650A | Process for preparing 2,4-diamino-5-(substituted benzyl)-pyrimidines | Chemistry; Metallurgy | 9 | Expired |
| US4218567A | Process for aromatic ethers | Chemistry; Metallurgy | 6 | Expired |
| US8207341B2 | Process or synthesizing substituted isoquinolines | Human Necessities | 4 | Active |
| US5182393A | Process for precursors to calcitriol and related compounds | Chemistry; Metallurgy | 3 | Expired |
| US5003090A | Process for the preparation of benzopyrans | Chemistry; Metallurgy | 3 | Expired |
| US6008209A | Method of using vitamin D.sub.3 analogs with bis C-20 side chains | Human Necessities | 2 | Expired |
| US6492353B1 | 1,3-dihydroxy-20,20-cycloalkyl-vitamin D3analogs | Chemistry; Metallurgy | 2 | Expired |
| US5225569A | Process for precursors to calcitriol and related compounds | Chemistry; Metallurgy | 1 | Expired |
| US4931574A | Process for the preparation of benzopyrans | Chemistry; Metallurgy | 1 | Expired |
| US6030962A | Vitamin D.sub.3 analogs with bis C-20 side chains | Chemistry; Metallurgy | 1 | Expired |
| US5352781A | Process for precursors to calcitriol and related compounds | Chemistry; Metallurgy | 1 | Expired |
| US4390718A | Prostaglandin intermediates | Chemistry; Metallurgy | 0 | Expired |
| US8357806B2 | Process for synthesizing substituted isoquinolines | Human Necessities | 0 | Active |
| US8877929B2 | Process for synthesizing substituted isoquinolines | Human Necessities | 0 | Active |
| US4430507A | 4-Methyl-2-oxo-cyclopentaneacetic acid prostaglandin intermediates | Chemistry; Metallurgy | 0 | Expired |
| US6040461A | Synthesis of 3-epi vitamin D.sub.3 metabolites and analogs | Chemistry; Metallurgy | 0 | Expired |
| US4568762A | 4-Methyl-2-oxo-cyclopentylidene acetic acid and esters thereof | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.