Douglas L. Ford
20Patents
12h-index
5Co-inventors
66Inventor score
Filing activity: Oct 1, 1984 → Sep 4, 1992
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4921610A | Cleaning of hollow fibre filters | Performing Operations; Transporting | 112 | Expired |
| US4793932A | Variable volume filter or concentrator | Performing Operations; Transporting | 98 | Expired |
| US4767539A | Cleaning of hollow fiber filters utilized in lumenal gas flow | Performing Operations; Transporting | 96 | Expired |
| US4931186A | Concentration of solids in a suspension | Performing Operations; Transporting | 93 | Expired |
| US5024762A | Concentration of solids in a suspension | Performing Operations; Transporting | 89 | Expired |
| US4816160A | Cooling hollow fibre cross-flow separators | Performing Operations; Transporting | 75 | Expired |
| US5141611A | Removing and recovering plant polyphenols | Performing Operations; Transporting | 47 | Expired |
| US4846976A | Treatment of emulsions | Performing Operations; Transporting | 37 | Expired |
| US4655927A | Separating oil emulsions | Performing Operations; Transporting | 27 | Expired |
| US4814083A | Altering pore size distributions | Performing Operations; Transporting | 16 | Expired |
| US4623463A | Formation of porous membranes | Chemistry; Metallurgy | 12 | Expired |
| US4661526A | Cross linked porous membranes | Chemistry; Metallurgy | 12 | Expired |
| US5277851A | Process of making a porous hollow fiber membrane | Chemistry; Metallurgy | 4 | Expired |
| US4822863A | Sulphuryl chloride/polyamide derivative | Physics | 4 | Expired |
| US4909938A | Reversed phase membranes | Performing Operations; Transporting | 4 | Expired |
| US4613625A | Substituted aliphatic polyamide porous membranes | Chemistry; Metallurgy | 3 | Expired |
| US4781873A | Reversed phase membranes | Performing Operations; Transporting | 3 | Expired |
| US4743378A | Rapid vapor transport through unwetted porous barriers | Emerging Cross-Sectional Technologies | 2 | Expired |
| US4970273A | Sulphuryl chloride/polyamide derivative support | Performing Operations; Transporting | 2 | Expired |
| US4668706A | Substituted aliphatic polyamide porous membranes | Chemistry; Metallurgy | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.