- 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: 236
10-year publication summary
|
22
|
25
|
13
|
22
|
23
|
23
|
17
|
17
|
18
|
7
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hamilton Sundstrand Corporation | 5015 |
8 |
| Mueller International, LLC | 744 |
7 |
| Fisher Controls International LLC | 1457 |
5 |
| Emerson Process Management Regulator Technologies, Inc. | 391 |
4 |
| Vitesco Technologies GmbH | 2397 |
4 |
| Illinois Tool Works Inc. | 11863 |
3 |
| Claverham Ltd. | 31 |
3 |
| DeZURIK, Inc. | 57 |
3 |
| Kuching International Ltd. | 31 |
3 |
| Baker Hughes Oilfield Operations, LLC | 2527 |
3 |
| Knappco, LLC | 59 |
3 |
| Mitsubishi Heavy Industries, Ltd. | 9128 |
2 |
| Hewlett-Packard Development Company, L.P. | 25184 |
2 |
| GM Global Technology Operations LLC | 16124 |
2 |
| Schaeffler Technologies AG & Co. KG | 10968 |
2 |
| JPMorgan Chase Bank, National Association | 8956 |
2 |
| AUMA Riester GmbH + Co. KG | 137 |
2 |
| Automatic Switch Company | 81 |
2 |
| B.box for Kids Developments Pty Ltd (abn 32 148 854 068) | 68 |
2 |
| Cameron International Corporation | 1370 |
2 |
| Other owners | 172 |