- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F16K - Valvestapscocksactuating-floatsdevices for venting or aerating
- F16K 31/44 - Mechanical actuating means
Patent holdings for IPC class F16K 31/44
Total number of patents in this class: 592
10-year publication summary
|
45
|
42
|
49
|
51
|
45
|
34
|
24
|
24
|
20
|
21
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Fisher Controls International LLC | 1504 |
14 |
| Fujikin Incorporated | 695 |
10 |
| Mitsubishi Heavy Industries Compressor Corporation | 631 |
8 |
| Denso Corporation | 24797 |
7 |
| Lintec of America, Inc. | 159 |
6 |
| MAHLE International GmbH | 2838 |
6 |
| Emerson Process Management Regulator Technologies, Inc. | 383 |
5 |
| Neoperl GmbH | 597 |
5 |
| Xiamen Solex High-Tech Industries Co., Ltd. | 430 |
5 |
| Samsung Electronics Co., Ltd. | 149198 |
4 |
| Halliburton Energy Services, Inc. | 21090 |
4 |
| Kohler Co. | 4099 |
4 |
| Mitsubishi Electric Corporation | 46973 |
4 |
| Hyundai Motor Company | 22842 |
4 |
| Goodrich Corporation | 2186 |
4 |
| Graco Minnesota Inc. | 1231 |
4 |
| Griswold Controls, LLC | 27 |
4 |
| LIXIL Corporation | 724 |
4 |
| Mechano Transformer Corporation | 44 |
4 |
| Neoperl AG | 159 |
4 |
| Other owners | 482 |