David W. Sopher
6Patents
3h-index
8Co-inventors
46Inventor score
Filing activity: May 9, 1983 → Aug 14, 1995
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5593557A | Electrode consisting of an iron-containing core and a lead-containing coating | Chemistry; Metallurgy | 7 | Expired |
| US4476025A | Separation of certain carboxylic acids utilizing cation exchange membranes | Performing Operations; Transporting | 6 | Expired |
| US4855452A | N-substituted azetidine carboxylate derivatives | Chemistry; Metallurgy | 3 | Expired |
| US4663487A | Preparation of 4,4-disubstituted cyclohexadienones | Chemistry; Metallurgy | 0 | Expired |
| US4760160A | Preparation of 3-cyano-4-fluorophenol | Chemistry; Metallurgy | 0 | Expired |
| US4778577A | Process for preparing azetidine derivatives; and intermediates therein | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.