Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10533543 | Pump capable of dispensing both a large volume and a small volume of colorant | Song Huang | 2020-01-14 |
| 10221839 | Control valve for pouring color paste in both large amount and small amount | Song Huang | 2019-03-05 |