- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F16K - Valves; taps; cocks; actuating-floats; devices 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: 347
10-year publication summary
|
32
|
34
|
36
|
33
|
49
|
28
|
22
|
19
|
22
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Fisher Controls International LLC | 1515 |
12 |
| Zhejiang DunAn Artificial Environment Co., Ltd | 491 |
12 |
| Mitsubishi Electric Corporation | 44851 |
7 |
| Fujikoki Corporation | 364 |
7 |
| Flowtech Co., Ltd. | 19 |
6 |
| Hamilton Sundstrand Corporation | 4728 |
5 |
| Shimadzu Corporation | 6019 |
5 |
| Kawasaki Heavy Industries, Limited | 1590 |
5 |
| Dong-A University Research Foundation for Industry-Academy Cooperation | 173 |
5 |
| Mueller International, LLC | 707 |
5 |
| SMC Corporation | 1359 |
5 |
| Zhejiang Sanhua Intelligent Controls Co., Ltd. | 199 |
5 |
| Siemens AG | 24565 |
4 |
| Denso Corporation | 23769 |
4 |
| Aisan Kogyo Kabushiki Kaisha | 722 |
4 |
| Control Components, Inc. | 83 |
4 |
| Grohe AG | 1055 |
4 |
| Kabushiki Kaisha Fujikin | 13 |
4 |
| Kayaba Industry Co., Ltd. | 367 |
4 |
| KYB Corporation | 1325 |
4 |
| Other owners | 236 |