Fospur Limited
7Patents
0Active
7Granted
25Portfolio score
Filing activity: Oct 16, 1987 → Nov 23, 1992
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4857221A | Recovering coal fines | Mechanical Engineering; Lighting; Heating | 22 | Expired |
| US5051199A | Froth flotation of mineral fines | Performing Operations; Transporting | 17 | Expired |
| US4956077A | Froth flotation of mineral fines | Performing Operations; Transporting | 15 | Expired |
| US4859318A | Recovering coal fines | Mechanical Engineering; Lighting; Heating | 11 | Expired |
| US5304317A | Froth flotation of fine particles | Performing Operations; Transporting | 9 | Expired |
| US5217604A | Froth flotation of fine particles | Performing Operations; Transporting | 3 | Expired |
| US5122290A | Froth flotation of calcium borate minerals | Performing Operations; Transporting | 1 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.