| 2024/0417,822 | Alkaline Oxidation Methods and Systems for Recovery of Metals from Ores | Apr 23, 24 | Dec 19, 24 | Alderley Gold Corp. |
| 2024/0417,827 | METHODS FOR EXTRACTING RARE EARTH ELEMENTS FROM ION-ADSORPTION CLAYS | Aug 26, 24 | Dec 19, 24 | Not available |
| 2024/0327,947 | MINERAL PROCESSING METHOD | Jun 10, 24 | Oct 03, 24 | KYUSHU UNIVERSITY - NATIONAL UNIVERSITY CORPORATION; Sumitomo Metal Mining Co. Ltd.; |
| 2024/0124,952 | METHOD FOR PRODUCING LOW-ARSENIC COPPER CONCENTRATE | Feb 25, 22 | Apr 18, 24 | Nittetsu Mining Co. Ltd. |
| 2022/0372,591 | METHOD FOR REMOVING PHOSPHORUS FROM PHOSPHORUS-CONTAINING SUBSTANCE, METHOD FOR MANUFACTURING RAW MATERIAL FOR METAL SMELTING OR RAW MATERIAL FOR METAL REFINING, AND METHOD FOR MANUFACTURING METAL | May 01, 20 | Nov 24, 22 | JFE Steel Corporation |
| 2022/0127,695 | PROCESSING ORES CONTAINING PRECIOUS METALS | Feb 05, 20 | Apr 28, 22 | Newcrest Mining Limited |
| 2020/0024,684 | METHOD AND SYSTEM FOR DESULFURIZATION AND DEZINCIFICATION OF TAILINGS | May 15, 19 | Jan 23, 20 | Not available |
| 2019/0376,158 | Alkaline Oxidation Methods and Systems for Recovery of Metals from Ores | May 14, 19 | Dec 12, 19 | Hycroft Mining Corporation |
| 2019/0169,709 | PROCESS FOR THE DEPRESSION OF IRON SULPHIDES AND OTHER DISPOSABLE ELEMENTS IN THE CONCENTRATION OF MINERAL BY FLOTATION AND ELECTROCHEMICAL REACTOR | Aug 02, 17 | Jun 06, 19 | INFOROCK S.L. |
| 2018/0298,466 | Low Acidity, Low Solids Pressure Oxidative Leaching of Sulphidic Feeds | Apr 12, 18 | Oct 18, 18 | Sherritt International Corporation |
| 2018/0258,510 | METHOD FOR REDUCING ARSENIC CONTENT IN ARSENIC-BEARING GOLD MATERIAL | Apr 28, 16 | Sep 13, 18 | Not available |
| 2018/0105,895 | PROCESS AND REACTOR FOR ARSENIC FIXATION | Apr 12, 16 | Apr 19, 18 | HATCH LTD. |
| 2018/0023,165 | METHOD FOR VITRIFICATION OF ARSENIC AND ANTIMONY | Jul 21, 16 | Jan 25, 18 | DUNDEE SUSTAINABLE TECHNOLOGIES INC. |
| 2015/0267,276 | REMOVAL OF ARSENIC USING A DISSIMILATORY ARSENIC REDUCTASE | Apr 03, 15 | Sep 24, 15 | UNIWERSYTET WARSZAWSKI |
| 2015/0068,365 | INTEGRATED PROCESS FOR PRODUCTION OF OZONE AND OXYGEN | Sep 12, 13 | Mar 12, 15 | AIR PRODUCTS AND CHEMICALS, INC. |
| 2014/0260,803 | PROCESS FOR PRODUCING DIRECT REDUCED IRON (DRI) UTILIZING GASES DERIVED FROM COAL | Aug 20, 11 | Sep 18, 14 | DANIELI & C. OFFICINE MECCANICHE S.P.A., HYL TECHNOLOGIES, S.A. DE C.V., |
| 2011/0296,949 | PROCESS AND EQUIPMENT FOR THE PRODUCTION OF DIRECT REDUCED IRON AND/OR PIG IRON FROM IRON ORES HAVING A HIGH-PHOSPHORUS CONTENT | Jun 08, 10 | Dec 08, 11 | C.V.G. Ferrominera Orinoco C.A. |
| 2011/0094,942 | METHOD FOR SEPARATING ARSENIC MINERAL FROM COPPER-BEARING MATERIAL WITH HIGH ARSENIC GRADE | Oct 27, 09 | Apr 28, 11 | SUMITOMO METAL MINING CO., LTD., Sumitomo Mining Co., Ltd., |
| 2001/0029,809 | Magnesium desulfurization agent | Jun 11, 01 | Oct 18, 01 | MAGNESIUM TECHNOLOGIES CORPORATION, Rossborough Manufacturing Co. L.P., |