- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F16K - Valvestapscocksactuating-floatsdevices for venting or aerating
- F16K 31/12 - Operating meansReleasing devices actuated by fluid
Patent holdings for IPC class F16K 31/12
Total number of patents in this class: 932
10-year publication summary
|
83
|
54
|
62
|
55
|
50
|
27
|
26
|
21
|
18
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Dresser LLC | 282 |
26 |
| Emerson Process Management Regulator Technologies, Inc. | 385 |
25 |
| Fisher Controls International LLC | 1495 |
25 |
| Hamilton Sundstrand Corporation | 5001 |
17 |
| Sloan Valve Company | 278 |
13 |
| Parker Intangibles LLC | 1196 |
11 |
| Fujikin Incorporated | 692 |
10 |
| Robert Bosch GmbH | 43294 |
8 |
| Caterpillar Inc. | 9998 |
8 |
| Cameron International Corporation | 1357 |
8 |
| SDB IP Holdings, LLC | 119 |
8 |
| Surpass Industry Co., Ltd. | 163 |
8 |
| Illinois Tool Works Inc. | 11660 |
6 |
| Ford Global Technologies, LLC | 21095 |
6 |
| Clearmotion, Inc. | 177 |
6 |
| Baker Hughes Oilfield Operations, LLC | 2405 |
6 |
| Schlumberger Technology Corporation | 11274 |
5 |
| Honeywell International Inc. | 13561 |
5 |
| Kawasaki Heavy Industries, Limited | 1631 |
5 |
| Azbil Corporation | 470 |
5 |
| Other owners | 721 |