Frederick Campbell
6Patents
6h-index
4Co-inventors
52Inventor score
Filing activity: Jul 28, 1980 → Dec 14, 1993
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4645611A | Dispersion | Emerging Cross-Sectional Technologies | 27 | Expired |
| US5536445A | Surfactant and dispersible or emulsifiable compositions employing surfactant | Emerging Cross-Sectional Technologies | 18 | Expired |
| US5300255A | Surfactant products of poly(hydroxyalkanecarboxylic acid) phosphate esters | Emerging Cross-Sectional Technologies | 17 | Expired |
| US4861380A | Composition | Chemistry; Metallurgy | 17 | Expired |
| US4398901A | Divider box assembly system | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4342563A | Box assembly system | Performing Operations; Transporting | 7 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.