Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11732447 | Universal water fountain filter head | Rengao Song, Mark Campbell | 2023-08-22 |
| 11203855 | Universal water fountain filter head | Rengao Song, Mark Campbell | 2021-12-21 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11732447 | Universal water fountain filter head | Rengao Song, Mark Campbell | 2023-08-22 |
| 11203855 | Universal water fountain filter head | Rengao Song, Mark Campbell | 2021-12-21 |