Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6439889 | Teeth crevice cleaning apparatus and method of using the same | Shuqi Chen | 2002-08-27 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6439889 | Teeth crevice cleaning apparatus and method of using the same | Shuqi Chen | 2002-08-27 |