James H. Simpson
12Patents
2h-index
40Co-inventors
50Inventor score
Filing activity: Dec 9, 1998 → Oct 17, 2014
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6953679B2 | Method for the preparation of fused heterocyclic succinimide compounds and analogs thereof | Chemistry; Metallurgy | 12 | Expired |
| US6162913A | Preparation of [4S-(4.alpha.,7.alpha.,10a.beta.)]-4-amino-octahydro-5-oxo-7H-pyrido[2,1 -b] [1,3]thiazepine-7-carboxylic acid, methyl ester and salts thereof via novel disulfides | Emerging Cross-Sectional Technologies | 4 | Expired |
| US8889869B2 | Methods for the preparation of HIV attachment inhibitor piperazine prodrug compound | Chemistry; Metallurgy | 2 | Active |
| US9249168B2 | Methods for the preparation of HIV attachment inhibitor piperazine prodrug compound | Chemistry; Metallurgy | 2 | Active |
| US9255113B2 | Methods for the Preparation of HIV attachment inhibitor piperazine prodrug compound | Chemistry; Metallurgy | 1 | Active |
| US9243010B2 | Methods for the preparation of HIV attachment inhibitor piperazine prodrug compound | Chemistry; Metallurgy | 1 | Active |
| US6486315B2 | Recrystallization processes | Chemistry; Metallurgy | 0 | Expired |
| US7507838B2 | Process for the preparation of Z-5-carboxymethylene-1,3-dioxolan-4-ones | Chemistry; Metallurgy | 0 | Active |
| US9376458B2 | Methods for the preparation of HIV attachment inhibitor piperazine prodrug compound | Chemistry; Metallurgy | 0 | Active |
| US9403821B2 | Methods for the preparation of HIV attachment inhibitor piperazine prodrug compound | Chemistry; Metallurgy | 0 | Active |
| US9394322B2 | Methods for the preparation of HIV attachment inhibitor piperazine prodrug compound | Chemistry; Metallurgy | 0 | Active |
| US6340752B1 | Deprotection and recrystallization processes | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.