Assignee
SHERRITT GORDON MINES LTD
CA·69 granted patents·1,736 citations·filing 1973–1987
Top patents by PatentIndex Score
69 records- 0197US4571264ARecovery of gold from refractory auriferous iron-containing sulphidic oreSHERRITT GORDON MINES LTD·Filed 1985·Granted Feb 18, 1986·89 cites·11 claims
- 0296US4605439ARecovery of gold from refractory auriferous iron-containing sulphidic materialSHERRITT GORDON MINES LTD·Filed 1985·Granted Aug 12, 1986·59 cites·7 claims
- 0394US4606763AProcess for the pressure oxidation acid leaching of non-ferrous metal and iron-containing sulphidic materialSHERRITT GORDON MINES LTD·Filed 1985·Granted Aug 19, 1986·53 cites·17 claims
- 0494US4070182ARecovery of precious metals from metal sulphidesSHERRITT GORDON MINES LTD·Filed 1976·Granted Jan 24, 1978·100 cites·29 claims
- 0591US4632701AProcess for the recovery of silver from a residue essentially free of elemental sulphurSHERRITT GORDON MINES LTD·Filed 1985·Granted Dec 30, 1986·40 cites·19 claims
- 0691US4571263ARecovery of gold from refractory auriferous iron-containing sulphidic concentratesSHERRITT GORDON MINES LTD·Filed 1985·Granted Feb 18, 1986·42 cites·11 claims
- 0791US4366128ARemoval of arsenic from aqueous solutionsSHERRITT GORDON MINES LTD·Filed 1980·Granted Dec 28, 1982·44 cites·14 claims
- 0890US4832925ARecovery of zinc from zinc-containing sulphidic materialSHERRITT GORDON MINES LTD·Filed 1983·Granted May 23, 1989·35 cites·4 claims
- 0989US4821800AFiltering media for controlling the flow of sand during oil well operationsSHERRITT GORDON MINES LTD·Filed 1987·Granted Apr 18, 1989·110 cites·10 claims
- 1088US4610724ARecovery of gold from refractory auriferous iron-containing sulphidic materialSHERRITT GORDON MINES LTD·Filed 1985·Granted Sep 9, 1986·33 cites·9 claims
- 1188US4571262ARecovery of platinum group metals from nickel-copper-iron matteSHERRITT GORDON MINES LTD·Filed 1985·Granted Feb 18, 1986·50 cites·9 claims
- 1286US4093450AProduction of ultrafine cobalt powder from dilute solutionSHERRITT GORDON MINES LTD·Filed 1977·Granted Jun 6, 1978·49 cites·10 claims
- 1386US4071421AProcess for the recovery of zincSHERRITT GORDON MINES LTD·Filed 1976·Granted Jan 31, 1978·32 cites·15 claims
- 1485US4746378AProcess for producing Sm2 Co17 alloy suitable for use as permanent magnetsSHERRITT GORDON MINES LTD·Filed 1986·Granted May 24, 1988·39 cites·13 claims
- 1584US4545963AProcess for separately recovering zinc and lead values from zinc and lead containing sulphidic oreSHERRITT GORDON MINES LTD·Filed 1983·Granted Oct 8, 1985·25 cites·9 claims
- 1683US4291089AComposite powders sprayable to form abradable seal coatingsSHERRITT GORDON MINES LTD·Filed 1979·Granted Sep 22, 1981·43 cites·30 claims
- 1783US4247374AMethod of forming blanks for coinsSHERRITT GORDON MINES LTD·Filed 1979·Granted Jan 27, 1981·26 cites·1 claims
- 1882US4176014AProcess for the production of coin blanksSHERRITT GORDON MINES LTD·Filed 1979·Granted Nov 27, 1979·25 cites·2 claims
- 1982US4004991ATwo-stage pressure leaching process for zinc and iron bearing mineral sulphidesSHERRITT GORDON MINES LTD·Filed 1975·Granted Jan 25, 1977·47 cites·6 claims
- 2082US3985553AProcess for the recovery of copper and ammonium sulphate from copper-bearing mineral sulphide ores or concentratesSHERRITT GORDON MINES LTD·Filed 1975·Granted Oct 12, 1976·45 cites·13 claims
- 2182US3964901AProduction of copper and sulfur from copper-iron sulfidesSHERRITT GORDON MINES LTD·Filed 1973·Granted Jun 22, 1976·25 cites·28 claims
- 2281US4440569ARecovery of zinc from zinc-containing sulphidic materialSHERRITT GORDON MINES LTD·Filed 1983·Granted Apr 3, 1984·36 cites·6 claims
- 2380US4579761AMethod of making aureate colored coins, medallions and tokens and products so madeSHERRITT GORDON MINES LTD·Filed 1985·Granted Apr 1, 1986·40 cites·15 claims
- 2478US4374173AComposite powders sprayable to form abradable seal coatingsSHERRITT GORDON MINES LTD·Filed 1980·Granted Feb 15, 1983·37 cites·22 claims
- 2578US3940254ANickel clad steel coinage blankSHERRITT GORDON MINES LTD·Filed 1974·Granted Feb 24, 1976·32 cites·3 claims
- 2677US4505744ARecovery of zinc from zinc containing sulphidic materialSHERRITT GORDON MINES LTD·Filed 1983·Granted Mar 19, 1985·18 cites·14 claims
- 2777US4049770ARecovery of copper and zinc as sulfides from copper-iron sulfidesSHERRITT GORDON MINES LTD·Filed 1976·Granted Sep 20, 1977·18 cites·3 claims
- 2877US3994716AProcess for the production of finely divided cobalt powdersSHERRITT GORDON MINES LTD·Filed 1974·Granted Nov 30, 1976·29 cites·11 claims
- 2976US4290866ARemoval of manganese ions from zinc and manganese containing solutionsSHERRITT GORDON MINES LTD·Filed 1979·Granted Sep 22, 1981·16 cites·5 claims
- 3076US4279968ACoins and similarly disc-shaped articlesSHERRITT GORDON MINES LTD·Filed 1980·Granted Jul 21, 1981·30 cites·1 claims
- 3176US4123260ASelective recovery of nickel and cobalt or copper and zinc from solutionSHERRITT GORDON MINES LTD·Filed 1977·Granted Oct 31, 1978·19 cites·26 claims
- 3274US4594102ARecovery of cobalt and nickel from sulphidic materialSHERRITT GORDON MINES LTD·Filed 1983·Granted Jun 10, 1986·23 cites·6 claims
- 3373US4606766AProcess for separately recovering gold and silver from solution by carbon adsorptionSHERRITT GORDON MINES LTD·Filed 1985·Granted Aug 19, 1986·17 cites·2 claims
- 3471US4547985AMethod of protecting a metallic surface susceptible to abrasion by rock-like materialSHERRITT GORDON MINES LTD·Filed 1982·Granted Oct 22, 1985·27 cites·21 claims
- 3569US4510028AProcess for recovering zinc from zinc ferrite materialSHERRITT GORDON MINES LTD·Filed 1983·Granted Apr 9, 1985·14 cites·11 claims
- 3668US4108640AHydrometallurgical process for the production of cobalt powder from mixed metal sulphidesSHERRITT GORDON MINES LTD·Filed 1976·Granted Aug 22, 1978·16 cites·9 claims
- 3766US4443253ARecovery of zinc from zinc containing sulphidic materialsSHERRITT GORDON MINES LTD·Filed 1982·Granted Apr 17, 1984·12 cites·12 claims
- 3866US4344574ACross-flow nebulizerSHERRITT GORDON MINES LTD·Filed 1979·Granted Aug 17, 1982·17 cites·14 claims
- 3966US4192851ALeaching of metal sulphidesSHERRITT GORDON MINES LTD·Filed 1978·Granted Mar 11, 1980·13 cites·4 claims
- 4065US4606948AProcess for the production of nickel-chromium/chromium carbide coatings on substratesSHERRITT GORDON MINES LTD·Filed 1985·Granted Aug 19, 1986·25 cites·14 claims
- 4165US4405570ARemoval of dissolved cadmium and copper from sulphate solution with hydrogen sulfideSHERRITT GORDON MINES LTD·Filed 1982·Granted Sep 20, 1983·14 cites·9 claims
- 4265US4329320AMethod and treatment of a gaseous mixture of ammonia, carbon dioxide and water vaporSHERRITT GORDON MINES LTD·Filed 1977·Granted May 11, 1982·18 cites·2 claims
- 4364US4331469AProcess for the recovery of silver values from silver-containing material which also contains iron and arsenicSHERRITT GORDON MINES LTD·Filed 1980·Granted May 25, 1982·12 cites·8 claims
- 4463US4279867AProcess for the recovery of copper and zinc values from sulphidic oreSHERRITT GORDON MINES LTD·Filed 1980·Granted Jul 21, 1981·13 cites·12 claims
- 4561US4379037ARemoval of manganese and chloride ions from aqueous acidic zinc sulphate solutionsSHERRITT GORDON MINES LTD·Filed 1981·Granted Apr 5, 1983·9 cites·11 claims
- 4660US4148632ATreatment of dissolved basic nickel carbonate to obtain nickelSHERRITT GORDON MINES LTD·Filed 1978·Granted Apr 10, 1979·15 cites·8 claims
- 4758US4406864ARecovery of uranium from material containing iron, arsenic and siliceous matterSHERRITT GORDON MINES LTD·Filed 1980·Granted Sep 27, 1983·8 cites·8 claims
- 4858US4089753AProcess for the production of nickel clad steel coinage blankSHERRITT GORDON MINES LTD·Filed 1976·Granted May 16, 1978·28 cites·6 claims
- 4957US4423007ARemoval of radium from aqueous sulphate solutionsSHERRITT GORDON MINES LTD·Filed 1981·Granted Dec 27, 1983·20 cites·8 claims
- 5056US4272490AHydrometallurgical process for the treatment of oresSHERRITT GORDON MINES LTD·Filed 1978·Granted Jun 9, 1981·8 cites·10 claims
Showing the top 50 of 69 patent records by PatentIndex Score.
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