| 2025/0075,357 | Systems And Methods For Direct Oxide Production | Jan 21, 22 | Mar 06, 25 | Aqua Metals Inc. |
| 2024/0368,729 | METHOD FOR REMOVING HALIDE FROM WAELZ OXIDE | May 24, 23 | Nov 07, 24 | Not available |
| 2024/0328,022 | ELECTROCHEMICAL METALLURGICAL PROCESS FOR EXTRACTING METALS AND SULFUR FROM METALLIC SULFIDES | Jun 14, 24 | Oct 03, 24 | Not available |
| 2024/0309,531 | TWO-COMPARTMENT ELECTROLYZER | Apr 25, 23 | Sep 19, 24 | VERDEEN CHEMICALS INC. |
| 2024/0240,345 | BIPOLAR ELECTROLYZER | Apr 05, 23 | Jul 18, 24 | VERDEEN CHEMICALS INC. |
| 2024/0093,398 | ELECTROLYTIC EXTRACTION OF ELEMENTAL METAL FROM METAL COMPOUNDS | May 05, 22 | Mar 21, 24 | VERDEEN CHEMICALS INC. |
| 2023/0374,684 | APPARATUS FOR ELECTRO-CHEMICAL EXTRACTION OF ELEMENTAL LEAD FROM DROSS | Aug 12, 22 | Nov 23, 23 | VERDEEN CHEMICALS INC. |
| 2023/0313,400 | Systems And Methods For Aqueous Recovery Of Lead From Lead Acid Batteries With Reduced Electrolyte Demand | Jun 06, 23 | Oct 05, 23 | Aqua Metals Inc. |
| 2022/0341,051 | Systems And Methods For Aqueous Recovery Of Lead From Lead Acid Batteries With Reduced Electrolyte Demand | Jun 12, 20 | Oct 27, 22 | Aqua Metals Inc. |
| 2022/0275,527 | Metal Recovery From Lead Containing Electrolytes | Jul 28, 20 | Sep 01, 22 | Aqua Metals Inc. |
| 2019/0309,428 | Electrolytic method for extracting tin and/or lead contained in an electrically conductive mixture | Dec 19, 17 | Oct 10, 19 | Not available |
| 2019/0301,031 | Systems And Methods For Continuous Alkaline Lead Acid Battery Recycling | Jun 07, 19 | Oct 03, 19 | Not available |
| 2019/0284,710 | Process for Preparing Lead by Electroreduction with Ammonium Chloride and Ammonia | Jul 10, 17 | Sep 19, 19 | Xiangyun Tenglong Investment Co., Ltd. |
| 2019/0242,022 | Process for Preparing Lead by Electroreduction with Ammonium Sulfate and Ammonia | Jul 10, 17 | Aug 08, 19 | Xiangyun Tenglong Investment Co., Ltd. |
| 2018/0355,494 | Closed Loop Systems and Methods for Recycling Lead Acid Batteries | May 13, 16 | Dec 13, 18 | Aqua Metals Inc. |
| 2018/0179,650 | Electrochemical Recycling Of Lead-Based Materials | Jun 09, 16 | Jun 28, 18 | Not available |
| 2018/0127,888 | Electrodeposited Lead Composition, Methods of Production, and Uses | May 13, 16 | May 10, 18 | Not available |
| 2018/0069,276 | Devices and Method for Smelterless Recycling of Lead Acid Batteries | Nov 13, 17 | Mar 08, 18 | AQUA METALS INC. |
| 2017/0362,681 | METHODS FOR RECOVERING METALS FROM ELECTRONIC WASTE, AND RELATED SYSTEMS | Aug 30, 17 | Dec 21, 17 | Not available |
| 2017/0275,772 | PROCESS FOR THE TREATMENT OF END-OF-LIFE CATHODE-RAY TUBES | Mar 22, 17 | Sep 28, 17 | E.V.H. S.R.L. |