Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10738449 | Hydraulic energy storage mechanism and pedestal pan toilet | — | 2020-08-11 |
| 10428503 | Suction device for waste discharge | — | 2019-10-01 |
| 8960070 | Sewage suction device | — | 2015-02-24 |
| 8869317 | Buoyancy operation mechanism for sewage suction device used in toilets | — | 2014-10-28 |