Issued Patents 2016
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9398836 | Surface cleaning apparatus | Kan Yuk Yiu, Jian Yun Pi, Joseph P. Perry, Jian Gang Fan | 2016-07-26 |
| 9320405 | Surface cleaning apparatus | Kan Yuk Yiu, Jian Yun Pi, Joseph P. Perry, Jian Gang Fan | 2016-04-26 |