- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F16K - Valvestapscocksactuating-floatsdevices for venting or aerating
- F16K 47/02 - Means in valves for absorbing fluid energy for preventing water-hammer or noise
Patent holdings for IPC class F16K 47/02
Total number of patents in this class: 384
10-year publication summary
|
34
|
36
|
33
|
49
|
29
|
23
|
20
|
25
|
25
|
17
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Zhejiang DunAn Artificial Environment Co., Ltd | 738 |
21 |
| Fisher Controls International LLC | 1420 |
14 |
| Fujikoki Corporation | 422 |
8 |
| Mitsubishi Electric Corporation | 48546 |
7 |
| Mueller International, LLC | 751 |
6 |
| SMC Corporation | 1404 |
6 |
| Kawasaki Jukogyo Kabushiki Kaisha (trading as Kawasaki Heavy Industries, Ltd.) | 3312 |
6 |
| AM Conservation Group | 13 |
6 |
| Hamilton Sundstrand Corporation | 5013 |
5 |
| Kawasaki Heavy Industries, Limited | 1717 |
5 |
| Dong-A University Research Foundation for Industry-Academy Cooperation | 227 |
5 |
| Flowtech Co., Ltd. | 20 |
5 |
| Zhejiang Sanhua Intelligent Controls Co., Ltd. | 233 |
5 |
| Siemens AG | 23948 |
4 |
| Denso Corporation | 25936 |
4 |
| Shimadzu Corporation | 6388 |
4 |
| Aisan Kogyo Kabushiki Kaisha | 783 |
4 |
| Grohe AG | 1045 |
4 |
| Kayaba Industry Co., Ltd. | 339 |
4 |
| KYB Corporation | 1443 |
4 |
| Other owners | 257 |