Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10480496 | Three-stage variable color paste pump and operation method thereof | Weidan XUE | 2019-11-19 |
| 10221839 | Control valve for pouring color paste in both large amount and small amount | Weihong Niu | 2019-03-05 |