Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9706889 | Dirt cup latch mechanism for vacuum cleaner | Wai Man Lee, Zhu Jiangping | 2017-07-18 |
| 9504366 | Bare floor cleaner | Gary A. Kasper, Joseph M. White, John L. Jansen, Aaron P. Griffith, Yang Caiyin | 2016-11-29 |
| 8640301 | Dirt cup latch mechanism for vacuum cleaner | Wai Man Lee, Zhu Jiangping | 2014-02-04 |