Falconbridge Limited
29Patents
0Active
29Granted
31Portfolio score
Filing activity: Jan 18, 1982 → Jan 21, 2004
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5795466A | Process for improved separation of sulphide minerals or middlings associated with pyrrhotite | Performing Operations; Transporting | 25 | Expired |
| US5049612A | Depressant for flotation separation of polymetallic sulphidic ores | Performing Operations; Transporting | 21 | Expired |
| US6004069A | Method for capping mine waste and tailing deposits | Emerging Cross-Sectional Technologies | 20 | Expired |
| US4540056A | Cutter assembly | Fixed Constructions | 19 | Expired |
| US5411148A | Selective flotation process for separation of sulphide minerals | Performing Operations; Transporting | 18 | Expired |
| US5147528A | Phosphate beneficiation process | Performing Operations; Transporting | 17 | Expired |
| US4952329A | Separation of polymetallic sulphides by froth flotation | Performing Operations; Transporting | 13 | Expired |
| US5693692A | Depressant for flotation separation of polymetallic sulphide ores | Performing Operations; Transporting | 13 | Expired |
| US4877517A | Depressant for flotation separation of polymetallic sulphidic ores | Performing Operations; Transporting | 12 | Expired |
| US4735783A | Process for increasing the selectivity of mineral flotation | Emerging Cross-Sectional Technologies | 11 | Expired |
| US4930595A | Method and apparatus for determining the profile of a subterranean passage | Physics | 10 | Expired |
| US4880529A | Separation of polymetallic sulphides by froth flotation | Performing Operations; Transporting | 10 | Expired |
| US4772382A | Froth flotation of bastnaesite | Performing Operations; Transporting | 7 | Expired |
| US7014036B2 | Cathode linear conveyer assembly | Chemistry; Metallurgy | 6 | Expired |
| US5238579A | Method for generating coarse precipitates from solutions or slurries containing ionic species | Emerging Cross-Sectional Technologies | 6 | Expired |
| US5149410A | Cathode stripping apparatus | Chemistry; Metallurgy | 6 | Expired |
| US4828809A | Separation of nickel from copper in autoclave | Emerging Cross-Sectional Technologies | 5 | Expired |
| US5419880A | Controlled acid-strong acid strip process | Emerging Cross-Sectional Technologies | 5 | Expired |
| US4395284A | Abrasion resistant machinable white cast iron | Chemistry; Metallurgy | 4 | Expired |
| US7306706B2 | Method and apparatus for stripping electrodeposited metal sheets from permanent cathodes | Chemistry; Metallurgy | 4 | Expired |
| US4814004A | Non-ferrous metal recovery | Emerging Cross-Sectional Technologies | 3 | Expired |
| US5382278A | Pretreatment of chromium-bearing metal scrap to remove chromium | Emerging Cross-Sectional Technologies | 2 | Expired |
| US6379426B1 | Fluidized bed reduction of laterite fines with reducing gases generated in situ | Emerging Cross-Sectional Technologies | 2 | Expired |
| US4853113A | Froth Flotation of bastnaesite | Performing Operations; Transporting | 2 | Expired |
| US7285193B2 | Encapsulated cathode hanger bar and method of manufacturing | Chemistry; Metallurgy | 1 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.