Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11047174 | Digging apparatus | Wai For Wong, Mark V. Tyson, Dong Lai Gu, Zhi Hau Chen | 2021-06-29 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11047174 | Digging apparatus | Wai For Wong, Mark V. Tyson, Dong Lai Gu, Zhi Hau Chen | 2021-06-29 |