- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F16K - Valvestapscocksactuating-floatsdevices for venting or aerating
- F16K 31/52 - Mechanical actuating means with crank, eccentric, or cam
Patent holdings for IPC class F16K 31/52
Total number of patents in this class: 224
10-year publication summary
|
17
|
22
|
25
|
13
|
22
|
23
|
23
|
17
|
15
|
7
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hamilton Sundstrand Corporation | 4824 |
7 |
| Fisher Controls International LLC | 1477 |
7 |
| Mueller International, LLC | 711 |
7 |
| Emerson Process Management Regulator Technologies, Inc. | 380 |
4 |
| Vitesco Technologies GmbH | 2595 |
4 |
| Illinois Tool Works Inc. | 11382 |
3 |
| Claverham Ltd. | 31 |
3 |
| DeZURIK, Inc. | 45 |
3 |
| Kuching International Ltd. | 28 |
3 |
| Knappco, LLC | 58 |
3 |
| Mitsubishi Heavy Industries, Ltd. | 8616 |
2 |
| Hewlett-Packard Development Company, L.P. | 25974 |
2 |
| GM Global Technology Operations LLC | 14834 |
2 |
| JPMorgan Chase Bank, National Association | 8519 |
2 |
| AUMA Riester GmbH + Co. KG | 109 |
2 |
| Automatic Switch Company | 81 |
2 |
| B.box for Kids Developments Pty Ltd (abn 32 148 854 068) | 54 |
2 |
| Cameron International Corporation | 1324 |
2 |
| Dr. Ing. h.c. F. Porsche Aktiengesellschaft | 2708 |
2 |
| Haldex AB | 90 |
2 |
| Other owners | 160 |