- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F16K - Valvestapscocksactuating-floatsdevices for venting or aerating
- F16K 17/02 - Safety valvesEqualising valves opening on surplus pressure on one sideSafety valvesEqualising valves closing on insufficient pressure on one side
Patent holdings for IPC class F16K 17/02
Total number of patents in this class: 369
10-year publication summary
|
47
|
47
|
29
|
42
|
39
|
34
|
29
|
33
|
19
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 20449 |
8 |
| Emerson Process Management Regulator Technologies, Inc. | 378 |
8 |
| Sakura Rubber Co., Ltd. | 19 |
6 |
| Hamilton Sundstrand Corporation | 4737 |
5 |
| Baker Hughes Oilfield Operations, LLC | 2133 |
5 |
| Illinois Tool Works Inc. | 11404 |
4 |
| Pratt & Whitney Canada Corp. | 4445 |
4 |
| BS & B Innovation Limited | 29 |
4 |
| Flowserve Management Company | 203 |
4 |
| KYB Corporation | 1326 |
4 |
| Saudi Arabian Oil Company | 12481 |
4 |
| Schlumberger Technology Corporation | 10284 |
3 |
| Schlumberger Technology B.v. | 5080 |
3 |
| Nitto Denko Corporation | 8099 |
3 |
| Conbraco Industries, Inc. | 31 |
3 |
| Nibco Inc. | 225 |
3 |
| Agility Fuel Systems LLC | 74 |
3 |
| Schlumberger Canada Limited | 7161 |
2 |
| The Boeing Company | 19915 |
2 |
| Honeywell International Inc. | 14022 |
2 |
| Other owners | 289 |