Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11239507 | Devices and method for smelterless recycling of lead acid batteries | Brian Dougherty, Robert Lewis Clarke, Stephen R. Clarke, Michael David Hurwitz | 2022-02-01 |
| 10689769 | Electrodeposited lead composition, methods of production, and uses | Stephen R. Clarke, Brian Dougherty, Michael David Hurwitz | 2020-06-23 |
| 10665907 | Devices and method for smelterless recycling of lead acid batteries | Stephen R. Clarke, Robert Lewis Clarke, Michael David Hurwitz, Selwyn Mould | 2020-05-26 |
| 10340561 | Devices and method for smelterless recycling of lead acid batteries | Brian Dougherty, Robert Lewis Clarke, Stephen R. Clarke, Michael David Hurwitz | 2019-07-02 |
| 9837689 | Method for smelterless recycling of lead acid batteries | Stephen R. Clarke, Robert Lewis Clarke, Michael David Hurwitz, Selwyn Mould | 2017-12-05 |