- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F16K - Valvestapscocksactuating-floatsdevices for venting or aerating
- F16K 31/385 - Operating meansReleasing devices actuated by fluid in which fluid from the conduit is constantly supplied to the fluid motor in which the fluid works directly on both sides of the fluid motor, one side being connected by means of a restricted passage and the motor being actuated by operating a discharge from that side the fluid acting on a diaphragm
Patent holdings for IPC class F16K 31/385
Total number of patents in this class: 133
10-year publication summary
|
8
|
9
|
9
|
17
|
11
|
15
|
11
|
10
|
8
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Neoperl GmbH | 597 |
16 |
| Grohe AG | 1058 |
10 |
| SDB IP Holdings, LLC | 126 |
7 |
| SMC Corporation | 1366 |
7 |
| Emerson Process Management Regulator Technologies, Inc. | 380 |
5 |
| Tyco Fire Products LP | 850 |
5 |
| Zurn Water, LLC | 230 |
5 |
| Blacoh Fluid Controls, Inc. | 16 |
4 |
| Sloan Valve Company | 275 |
4 |
| Neptune Technology Group LLC | 76 |
4 |
| AS America, Inc. | 1045 |
3 |
| Hansgrohe SE | 1002 |
3 |
| Zurn Industries, LLC | 93 |
3 |
| Pratt & Whitney Canada Corp. | 4602 |
2 |
| Adey Holdings (2008) Limited | 327 |
2 |
| Apex Valves Limited | 20 |
2 |
| A.r.i. Flow Control Accessories Ltd. | 14 |
2 |
| Robertshaw Controls Company | 105 |
2 |
| Thomas Dudley Limited | 17 |
2 |
| Toto Ltd. | 1163 |
2 |
| Other owners | 43 |