- All sections
- E - Fixed constructions
- E03D - Water-closets or urinals with flushing devicesflushing valves therefor
- E03D 3/04 - Self-closing flushing valves with piston valve and pressure chamber for retarding the valve-closing movement
Patent holdings for IPC class E03D 3/04
Total number of patents in this class: 42
10-year publication summary
|
4
|
3
|
8
|
8
|
4
|
2
|
1
|
1
|
2
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| SDB IP Holdings, LLC | 126 |
11 |
| Sloan Valve Company | 275 |
9 |
| Kohler Co. | 4016 |
3 |
| Masco Canada Limited | 126 |
3 |
| AS America, Inc. | 1043 |
2 |
| Les ROBINETS PRESTO | 28 |
2 |
| Mac faucets, LLC | 7 |
2 |
| Swiss Aqua Technologies AG | 22 |
2 |
| Coway Co., Ltd. | 719 |
1 |
| Lab (Xiamen) Sanitary Fittings Inc | 38 |
1 |
| Li, Feiyu | 14 |
1 |
| Mansfield Plumbing Products, LLC | 54 |
1 |
| Toto Ltd. | 1163 |
1 |
| Xiamen Axent Corporation Limited | 47 |
1 |
| Rigel Technology (S) Pte Ltd | 16 |
1 |
| Xiamen Zhihaifeng Sanitary Ware Technology Co., Ltd | 1 |
1 |
| Other owners | 0 |