- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F16K - Valvestapscocksactuating-floatsdevices for venting or aerating
- F16K 1/46 - Attachment of sealing rings
Patent holdings for IPC class F16K 1/46
Total number of patents in this class: 450
10-year publication summary
|
15
|
32
|
38
|
55
|
33
|
47
|
50
|
44
|
40
|
36
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Emerson Process Management Regulator Technologies, Inc. | 383 |
21 |
| Fisher Controls International LLC | 1503 |
16 |
| Zhejiang DunAn Artificial Environment Co., Ltd | 596 |
16 |
| SPM Oil & Gas Inc. | 341 |
13 |
| Swagelok Company | 319 |
10 |
| Continental Automotive GmbH | 4719 |
7 |
| Baker Hughes Oilfield Operations, LLC | 2395 |
7 |
| Dresser LLC | 281 |
7 |
| Flowserve Pte. Ltd | 361 |
6 |
| Vitesco Technologies GmbH | 2414 |
6 |
| Robert Bosch GmbH | 43114 |
5 |
| Hanon Systems | 2013 |
5 |
| Mac Valves, Inc. | 82 |
5 |
| Vulcan Industrial Holdings LLC | 64 |
5 |
| Zhejiang Sanhua Commercial Refrigeration Controls Co., Ltd. | 34 |
5 |
| Fisher Jeon Gas Equipment (Chengdu) Co., Ltd. | 45 |
4 |
| Fujikin Incorporated | 694 |
4 |
| GEA Tuchenhagen GmbH | 147 |
4 |
| S.P.M. Flow Control, Inc. | 99 |
4 |
| Weir Minerals Netherlands B.V. | 59 |
4 |
| Other owners | 296 |