- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F16K - Valvestapscocksactuating-floatsdevices for venting or aerating
- F16K 31/36 - Operating meansReleasing devices actuated by fluid in which fluid from the conduit is constantly supplied to the fluid motor
Patent holdings for IPC class F16K 31/36
Total number of patents in this class: 86
10-year publication summary
|
2
|
8
|
4
|
4
|
2
|
1
|
1
|
3
|
5
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hamilton Sundstrand Corporation | 5014 |
4 |
| Fisher Controls International LLC | 1455 |
3 |
| Proterial, Ltd. | 938 |
3 |
| Toyota Motor Corporation | 35813 |
2 |
| Caterpillar Inc. | 10281 |
2 |
| Alcon, Inc. | 5876 |
2 |
| Azbil Corporation | 472 |
2 |
| Bio-Rad Laboratories, Inc. | 1612 |
2 |
| Flamekeeper, LLC | 5 |
2 |
| HYDAC Fluidtechnik GmbH | 139 |
2 |
| Nelson Irrigation Corporation | 124 |
2 |
| Rain Bird Corporation | 428 |
2 |
| The Procter & Gamble Company | 21849 |
1 |
| Schlumberger Technology Corporation | 11820 |
1 |
| Baker Hughes Incorporated | 4927 |
1 |
| The Boeing Company | 20163 |
1 |
| Honeywell International Inc. | 12772 |
1 |
| GM Global Technology Operations LLC | 16155 |
1 |
| Tokyo Electron Limited | 13824 |
1 |
| California Institute of Technology | 4037 |
1 |
| Other owners | 50 |