Issued Patents 2022
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11414724 | Agent for selective antimony and arsenic removal and tin retaining for refining secondary crude lead, and use method thereof | — | 2022-08-16 |
| 11404731 | Lead needle and lead slime separator for treating thin lead grid of waste lead-acid storage battery | — | 2022-08-02 |
| 11339456 | Separating and melting system and method for waste lead grid in waste lead acid storage battery recycling | — | 2022-05-24 |