| 2025/0101,623 | Electrode, and Use and Preparation Method Thereof | Jan 17, 23 | Mar 27, 25 | MAGNETO SPECIAL ANODES B.V. |
| 2024/0375,084 | SUPRAMOLECULAR GOLD STRIPPING FROM ACTIVATED CARBON USING ALPHA-CYCLODEXTRIN | Dec 21, 21 | Nov 14, 24 | Not available |
| 2024/0376,622 | SILVER RECOVERY FROM END-OF-LIFE SILICON SOLAR PANELS | May 09, 24 | Nov 14, 24 | Not available |
| 2024/0352,610 | ELECTROCHEMICAL RECYCLING OF HOMOGENEOUS CATALYSTS | Apr 20, 22 | Oct 24, 24 | The Board of Trustees of the University of Illinois |
| 2024/0344,221 | PROCESS FOR ELECTROLYTIC PRODUCTION OF METAL POWDER | Aug 03, 22 | Oct 17, 24 | Not available |
| 2024/0287,644 | RECOVERY METHOD FOR VALUABLE METALS IN COPPER ANODE SLIME | Oct 12, 22 | Aug 29, 24 | Not available |
| 2024/0271,303 | ELECTROCHEMICAL SYSTEM AND METHOD FOR SELECTIVE RECOVERY OF GOLD FROM ELECTRONIC WASTE AND MINING STREAMS | Feb 08, 24 | Aug 15, 24 | Not available |
| 2024/0175,156 | A PROCESS FOR PRECIPITATING PARTICLES OF PLATINUM GROUP METALS | Mar 29, 22 | May 30, 24 | VITO NV; KATHOLIEKE UNIVERSITEIT LEUVEN, K.U. LEUVEN R&D; |
| 2023/0407,503 | METHOD FOR RECOVERING NOBLE METAL FROM HETEROGENEOUS CATALYSTS CONTAINING NOBLE METAL | Aug 31, 21 | Dec 21, 23 | Not available |
| 2023/0340,681 | METHOD FOR CLEAN RECOVERY OF PALLADIUM | Mar 19, 23 | Oct 26, 23 | Institute of Process Engineering Chinese Academy of Sciences |
| 2023/0203,688 | METHOD FOR EXTRACTING PALLADIUM | Dec 27, 22 | Jun 29, 23 | Institute of Process Engineering Chinese Academy of Sciences |
| 2023/0002,923 | RECOVERY OF NOBLE METALS | Jan 06, 22 | Jan 05, 23 | Greene Lyon Group, Inc. |
| 2022/0178,000 | A PROCESS FOR RECOVERING GOLD FROM ORES | Mar 12, 20 | Jun 09, 22 | Not available |
| 2022/0112,616 | METHOD FOR CLEANLY EXTRACTING METALLIC SILVER | Jul 13, 18 | Apr 14, 22 | Institute of Process Engineering Chinese Academy of Sciences |
| 2022/0074,061 | SELECTIVE REMOVAL OF NOBLE METALS USING ACIDIC FLUIDS, INCLUDING FLUIDS CONTAINING NITRATE IONS | Oct 22, 20 | Mar 10, 22 | Greene Lyon Group, Inc. |
| 2021/0180,199 | SELECTIVE REMOVAL OF NOBLE METALS USING ACIDIC FLUIDS, INCLUDING FLUIDS CONTAINING NITRATE IONS | Oct 22, 20 | Jun 17, 21 | Greene Lyon Group, Inc. |
| 2020/0392,634 | Method for Production of Metal Article of Manufacture and Uses Thereof | Sep 01, 20 | Dec 17, 20 | Not available |
| 2020/0248,325 | METHOD FOR PRODUCING METALLIC SILVER BY ELECTRO-DEPOSITION | Sep 03, 18 | Aug 06, 20 | Institute of Process Engineering Chinese Academy of Sciences |
| 2020/0141,016 | A method of recovering Pt or Ag or Pt and Ag from sulfate based metal solutions | Jun 20, 18 | May 07, 20 | Not available |
| 2020/0040,475 | METHOD AND APPARATUS FOR RECOVERY OF NOBLE METALS, INCLUDING RECOVERY OF NOBLE METALS FROM PLATED AND/OR FILLED SCRAP | May 21, 19 | Feb 06, 20 | Greene Lyon Group, Inc. |