Issued Patents 2019
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10441121 | Portable surface cleaning apparatus | Wayne Ernest Conrad, Jason B. Thorne, Amy M. Kwok | 2019-10-15 |
| 10405710 | Portable surface cleaning apparatus | Wayne Ernest Conrad, Jason B. Thorne, Amy M. Kwok | 2019-09-10 |
| 10391878 | System and method for calibrating battery state of charge | Jiucai Zhang, Charles Clarence Hicks, Jr., Robert August Kaucic, Leng Mao | 2019-08-27 |
| 10218188 | String current limited battery charging control | Jiucai Zhang, Charles Clarence Hicks, Jr., Robert August Kaucic, Leng Mao | 2019-02-26 |