Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12024869 | Air release valve and air pressure driven toilet water tank drain valve | Zipeng Zhang | 2024-07-02 |
| 10920406 | Leak-proof device for water inlet valve | Zipeng Zhang | 2021-02-16 |
| 10920903 | Water stop valve | Zipeng Zhang | 2021-02-16 |
| 10161122 | Twin water-drainage valve inner core tube starting apparatus | — | 2018-12-25 |
| 10132067 | Major water leak prevention apparatus for water inlet valve | Zipeng Zhang | 2018-11-20 |
| 10041240 | Minor water leak prevention apparatus for water inlet valve | Zipeng Zhang | 2018-08-07 |
| 9476192 | Soft-touch double-drain valve | — | 2016-10-25 |
| 9441354 | Water inlet valve | Zipeng Zhang | 2016-09-13 |
| 8899549 | Drain valve base | — | 2014-12-02 |
| 8650672 | Water leakage protecting device | — | 2014-02-18 |