- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F16K - Valvestapscocksactuating-floatsdevices for venting or aerating
- F16K 3/34 - Arrangements for modifying the way in which the rate of flow varies during the actuation of the valve
Patent holdings for IPC class F16K 3/34
Total number of patents in this class: 133
10-year publication summary
|
12
|
13
|
13
|
11
|
13
|
13
|
12
|
13
|
11
|
4
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Fisher Controls International LLC | 1438 |
7 |
| Robert Bosch GmbH | 44254 |
3 |
| Denso Corporation | 25645 |
3 |
| Caterpillar Global Mining LLC | 208 |
3 |
| EcoWater Systems LLC | 142 |
3 |
| Mueller International, LLC | 746 |
3 |
| z & J Technologies GmbH | 32 |
3 |
| Pratt & Whitney Canada Corp. | 5517 |
2 |
| Caterpillar Inc. | 10280 |
2 |
| Binder GmbH | 69 |
2 |
| IMI Hydronic Engineering International S.A. | 118 |
2 |
| Magna Powertrain Inc. | 104 |
2 |
| Parker Hannifin Manufacturing Limited | 50 |
2 |
| ZMK Technologies GmbH | 2 |
2 |
| Hanon Systems EFP Canada Ltd. | 69 |
2 |
| META Platforms Technologies, LLC | 6499 |
2 |
| Droptech AS | 2 |
2 |
| Fortune Brands Water Innovations LLC | 532 |
2 |
| Zhejiang Sanhua Commercial Refrigeration Controls Co., Ltd. | 36 |
2 |
| Namara Water Technologies, Inc. | 5 |
2 |
| Other owners | 82 |