- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F16K - Valvestapscocksactuating-floatsdevices for venting or aerating
- F16K 31/30 - Operating meansReleasing devices actuated by fluid actuated by a float actuating a gate valve or sliding valve
Patent holdings for IPC class F16K 31/30
Total number of patents in this class: 22
10-year publication summary
|
3
|
2
|
2
|
3
|
6
|
2
|
3
|
2
|
2
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 20506 |
2 |
| Country Cocky Pty. Ltd. | 3 |
2 |
| Mitsubishi Aircraft Corporation | 139 |
2 |
| New Finance Services Inc. | 6 |
2 |
| Lane Enterprises, LLC | 6 |
2 |
| Flowtech Fueling, LLC | 6 |
1 |
| Risbridger Limited | 3 |
1 |
| Rodicon Limited | 5 |
1 |
| Safran Helicopter Engines | 731 |
1 |
| Volvo Truck Corporation | 3152 |
1 |
| Canon Medical Systems Corporation | 2135 |
1 |
| Danfoss A/S | 1338 |
1 |
| The Hi-lo Valve Co. Ltd | 1 |
1 |
| Taka Technology Co., Ltd | 17 |
1 |
| ZF Off-highway Solutions Minnesota Inc. | 26 |
1 |
| Topsoe A/S | 837 |
1 |
| 3 Rocks Engineering LLC | 1 |
1 |
| Other owners | 0 |