- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F16K - Valvestapscocksactuating-floatsdevices for venting or aerating
- F16K 31/40 - Operating meansReleasing devices actuated by fluid in which fluid from the conduit is constantly supplied to the fluid motor with electrically-actuated member in the discharge of the motor
Patent holdings for IPC class F16K 31/40
Total number of patents in this class: 360
10-year publication summary
|
37
|
28
|
28
|
30
|
31
|
25
|
38
|
24
|
21
|
13
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Robert Bosch GmbH | 42505 |
24 |
| HYDAC Fluidtechnik GmbH | 134 |
19 |
| Danfoss A/S | 1348 |
17 |
| SDB IP Holdings, LLC | 126 |
16 |
| Fujikoki Corporation | 375 |
8 |
| Halliburton Energy Services, Inc. | 20769 |
7 |
| Delta Faucet Company | 2751 |
6 |
| Artemis Intelligent Power Limited | 100 |
5 |
| Elbi International S.p.A. | 92 |
5 |
| Goodrich Corporation | 2106 |
5 |
| Denso Corporation | 24146 |
4 |
| Caterpillar Inc. | 9509 |
4 |
| Hyundai Motor Company | 21748 |
4 |
| Dukes Aerospace, Inc. | 11 |
4 |
| Parker-Hannifin Corporation | 1032 |
4 |
| Pierburg GmbH | 466 |
4 |
| R.P.E. S.r.l. | 20 |
4 |
| Zhejiang DunAn Artificial Environment Co., Ltd | 543 |
4 |
| Benoît & Coté Inc. | 8 |
4 |
| Zurn Water, LLC | 229 |
4 |
| Other owners | 208 |