Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9863545 | Hose coupling device, mop suction device, electric vacuum cleaner, and ball valve | — | 2018-01-09 |
| 8689392 | Mop dust suction device | — | 2014-04-08 |
| 4694256 | Compensation circuit for pulse signals | — | 1987-09-15 |
| 4626910 | Circuit for preventing flicker attributable to field signal-frame signal conversion | — | 1986-12-02 |