Issued Patents 2021
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11174956 | Regulable pressure relief valve for a draft beer fresh-keeping keg | Xiaoyang Ye | 2021-11-16 |
| 11104122 | Apparatus and process for printing beer barrels | — | 2021-08-31 |
| 10882726 | Beer spear with a pressure relief valve | Xiaoyang Ye | 2021-01-05 |
| 10882729 | Beverage preservation keg with adjustable beer tap | Xiaoyang Ye | 2021-01-05 |