- 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: 395
10-year publication summary
|
47
|
29
|
42
|
39
|
34
|
30
|
34
|
21
|
27
|
11
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 21306 |
8 |
| Emerson Process Management Regulator Technologies, Inc. | 389 |
8 |
| Sakura Rubber Co., Ltd. | 22 |
6 |
| Illinois Tool Works Inc. | 11852 |
5 |
| Hamilton Sundstrand Corporation | 5017 |
5 |
| KYB Corporation | 1420 |
5 |
| Nibco Inc. | 238 |
5 |
| Emerson Automation Solutions Final Control US LP | 50 |
5 |
| Pratt & Whitney Canada Corp. | 5464 |
4 |
| BS & B Innovation Limited | 28 |
4 |
| Flowserve Management Company | 193 |
4 |
| Saudi Arabian Oil Company | 14161 |
4 |
| Schlumberger Technology Corporation | 11767 |
3 |
| Schlumberger Technology B.v. | 5299 |
3 |
| Honeywell International Inc. | 12783 |
3 |
| Nitto Denko Corporation | 8517 |
3 |
| Conbraco Industries, Inc. | 31 |
3 |
| Donaldson Company, Inc. | 1601 |
3 |
| Microtecnica S.r.l. | 100 |
3 |
| Agility Fuel Systems LLC | 80 |
3 |
| Other owners | 308 |