- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F16K - Valves; taps; cocks; actuating-floats; devices 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: 319
10-year publication summary
|
36
|
33
|
31
|
35
|
40
|
39
|
29
|
34
|
8
|
8
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Fisher Controls International LLC | 1520 |
25 |
| Cameron International Corporation | 1305 |
17 |
| Schaeffler Technologies AG & Co. KG | 8880 |
11 |
| Denso Corporation | 23338 |
10 |
| Zibo Votaisi Petrochemical Equipment Co., Ltd | 14 |
9 |
| Oil States Energy Services, L.L.C. | 79 |
8 |
| Halliburton Energy Services, Inc. | 20165 |
7 |
| MoGas Industries, Inc. | 43 |
6 |
| Cameron Technologies Limited | 229 |
6 |
| KITZ Corporation | 197 |
5 |
| Shanghai HONGYAN Returnable Transit Packagings Co., Ltd. | 154 |
5 |
| Control Components, Inc. | 84 |
4 |
| Hayward Industries, Inc. | 669 |
4 |
| Worldwide Oilfield Machine, Inc. | 50 |
4 |
| Gasket International S.r.l. | 5 |
4 |
| Illinois Tool Works Inc. | 11152 |
3 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10525 |
3 |
| Bray International, Inc. | 119 |
3 |
| Cortec, L.L.C. | 8 |
3 |
| Cummins Ltd. | 178 |
3 |
| Other owners | 179 |