Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10550630 | Expandable bathroom door | — | 2020-02-04 |
| 10478843 | Liquid hand wash container | Kam King Yau | 2019-11-19 |
| 9993120 | Liquid soap dispenser with controls positive and reverse rotations of motor and liquid discharge amount through angle counting | — | 2018-06-12 |
| 8113389 | Anti drip fluid dispenser | Richard P. Lewis, Malcolm C. Halls, Paul Francis Tramontina, Yutai Guo, Charles Agnew Osborne, JR. | 2012-02-14 |