- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F16K - Valvestapscocksactuating-floatsdevices for venting or aerating
- F16K 17/16 - Safety valvesEqualising valves opening on surplus pressure on one sideSafety valvesEqualising valves closing on insufficient pressure on one side with fracturing member with fracturing diaphragm
Patent holdings for IPC class F16K 17/16
Total number of patents in this class: 254
10-year publication summary
|
23
|
24
|
14
|
27
|
21
|
14
|
12
|
24
|
17
|
11
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Fike Corporation | 137 |
22 |
| Oklahoma Safety Equipment Company, Inc. | 27 |
13 |
| BS & B Innovation Limited | 28 |
12 |
| Goodrich Corporation | 2182 |
9 |
| Illinois Tool Works Inc. | 11902 |
7 |
| BS & B Safety Systems Ltd. | 13 |
7 |
| Donaldson Company, Inc. | 1613 |
6 |
| Commissariat à l'énergie atomique et aux energies alternatives | 11137 |
5 |
| Elfab Limited | 16 |
5 |
| PSI Pressure Systems LLC | 10 |
5 |
| SPM Oil & Gas Inc. | 361 |
5 |
| Halliburton Energy Services, Inc. | 21296 |
4 |
| Hansen Technologies, LLC | 16 |
4 |
| Milwaukee Electric Tool Corporation | 5078 |
4 |
| NCS Multistage Inc. | 172 |
4 |
| Petainer Large Container IP Limited | 32 |
4 |
| Donadon Safety Discs and Decives S.r.l. | 4 |
4 |
| BYD Company Limited | 6662 |
3 |
| Lonza Ltd. | 594 |
3 |
| MANN+HUMMEL GmbH | 1817 |
3 |
| Other owners | 125 |