- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F16K - Valvestapscocksactuating-floatsdevices for venting or aerating
- F16K 31/128 - Operating meansReleasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like servo actuated
Patent holdings for IPC class F16K 31/128
Total number of patents in this class: 83
10-year publication summary
|
9
|
9
|
16
|
8
|
5
|
4
|
1
|
3
|
2
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Murata Manufacturing Co., Ltd. | 25809 |
5 |
| IMI Hydronic Engineering International S.A. | 118 |
4 |
| SDB IP Holdings, LLC | 116 |
4 |
| Griswold Controls, LLC | 27 |
3 |
| Fisher Controls International LLC | 1438 |
2 |
| Husqvarna AB | 3035 |
2 |
| IMI Hydronic Engineering, Inc. | 7 |
2 |
| Sundew Technologies, LLC | 13 |
2 |
| Tokkyokiki Corporation | 24 |
2 |
| Camozzi Automation S.p.A. | 55 |
2 |
| Taiwan Chelic Co., Ltd. | 8 |
2 |
| Siemens AG | 23996 |
1 |
| The Regents of the University of California | 20815 |
1 |
| Honeywell International Inc. | 12776 |
1 |
| Mitsubishi Electric Corporation | 48172 |
1 |
| Agilent Technologies, Inc. | 2637 |
1 |
| Hamilton Sundstrand Corporation | 5014 |
1 |
| Shimadzu Corporation | 6364 |
1 |
| Henkel AG & Co. KGaA | 10758 |
1 |
| JPMorgan Chase Bank, National Association | 8960 |
1 |
| Other owners | 44 |