Issued Patents All Time
Showing 26–29 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9627897 | String current limited battery charging control | Jiucai Zhang, Charles Clarence Hicks, Jr., Robert August Kaucic, Leng Mao | 2017-04-18 |
| 9565981 | Portable surface cleaning apparatus | Wayne Ernest Conrad, Jason B. Thorne, Amy M. Kwok | 2017-02-14 |
| 9451853 | Portable surface cleaning apparatus | Wayne Ernest Conrad, Jason B. Thorne, Kai Xu | 2016-09-27 |
| 9314139 | Portable surface cleaning apparatus | Wayne Ernest Conrad, Jason B. Thorne, Amy M. Kwok | 2016-04-19 |