- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F16K - Valves; taps; cocks; actuating-floats; devices for venting or aerating
- F16K 31/20 - Operating means; Releasing devices actuated by fluid actuated by a float actuating a lift valve
Patent holdings for IPC class F16K 31/20
Total number of patents in this class: 70
10-year publication summary
13
|
8
|
10
|
9
|
5
|
6
|
8
|
11
|
1
|
1
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Hamilton Sundstrand Corporation | 4525 |
3 |
Piolax Inc. | 388 |
3 |
Coscarella, Gabe | 52 |
2 |
Hgci, Inc. | 869 |
2 |
Stormwell Inc. | 10 |
2 |
Teledyne Detcon, Inc. | 44 |
2 |
LG Electronics Inc. | 69257 |
1 |
Tokyo Electron Limited | 11599 |
1 |
Whirlpool Corporation | 4238 |
1 |
Carrier Corporation | 4759 |
1 |
Air Products and Chemicals, Inc. | 1448 |
1 |
Allegiance Corporation | 270 |
1 |
Atieva, Inc. | 328 |
1 |
B/E Aerospace, Inc. | 1493 |
1 |
Cameron International Corporation | 1305 |
1 |
China Institute of Water Resources and Hydropower Research | 69 |
1 |
Clay and Bailey Manufacturing Company | 5 |
1 |
Cooley, Robert Charles | 3 |
1 |
Coway Co., Ltd. | 649 |
1 |
DeZURIK, Inc. | 44 |
1 |
Other owners | 42 |