- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F16K - Valvestapscocksactuating-floatsdevices for venting or aerating
- F16K 5/20 - Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces
Patent holdings for IPC class F16K 5/20
Total number of patents in this class: 342
10-year publication summary
|
33
|
31
|
35
|
40
|
39
|
29
|
35
|
12
|
29
|
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 |
26 |
| Cameron International Corporation | 1323 |
19 |
| Denso Corporation | 23769 |
11 |
| Schaeffler Technologies AG & Co. KG | 9395 |
11 |
| Oil States Energy Services, L.L.C. | 76 |
9 |
| Zibo Votaisi Petrochemical Equipment Co., Ltd | 14 |
9 |
| Halliburton Energy Services, Inc. | 20438 |
7 |
| KITZ Corporation | 203 |
6 |
| MoGas Industries, Inc. | 43 |
6 |
| Cameron Technologies Limited | 246 |
6 |
| Shanghai HONGYAN Returnable Transit Packagings Co., Ltd. | 152 |
5 |
| Illinois Tool Works Inc. | 11399 |
4 |
| Control Components, Inc. | 83 |
4 |
| Cortec, L.L.C. | 10 |
4 |
| Hayward Industries, Inc. | 678 |
4 |
| Vernet | 157 |
4 |
| Worldwide Oilfield Machine, Inc. | 51 |
4 |
| Gasket International S.r.l. | 5 |
4 |
| Flowserve Pte. Ltd | 369 |
4 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10692 |
3 |
| Other owners | 192 |