John L. Sands
9Patents
5h-index
13Co-inventors
56Inventor score
Filing activity: Jan 21, 1976 → Mar 2, 1992
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4879353A | Bromination of polystyrene using bromine as the reaction solvent | Chemistry; Metallurgy | 36 | Expired |
| US4287373A | Perbromination of phenol and diphenyl ether at elevated temperature using bromine as the reaction medium | Emerging Cross-Sectional Technologies | 30 | Expired |
| US4327227A | Process for producing purified brominated aromatic compounds | Chemistry; Metallurgy | 18 | Expired |
| US5328983A | Process for purifying brominated polystyrene | Chemistry; Metallurgy | 12 | Expired |
| US4088768A | N-heterocyclic ureas as immune regulants | Chemistry; Metallurgy | 10 | Expired |
| US4160112A | Process for the isolation of pentabromophenol | Chemistry; Metallurgy | 4 | Expired |
| US4208419A | N-Heterocyclic ureas as immune regulants | Human Necessities | 1 | Expired |
| US4171364A | N-heterocyclic ureas as immune regulants | Human Necessities | 0 | Expired |
| US4153709A | N-Heterocyclic ureas as immune regulants | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.