- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F16K - Valves; taps; cocks; actuating-floats; devices for venting or aerating
- F16K 31/22 - Operating means; Releasing devices actuated by fluid actuated by a float actuating a lift valve with the float rigidly connected to the valve
Patent holdings for IPC class F16K 31/22
Total number of patents in this class: 137
10-year publication summary
9
|
14
|
22
|
22
|
19
|
21
|
10
|
12
|
9
|
2
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Kyosan Denki Co., Ltd. | 57 |
7 |
Nifco Inc. | 1103 |
6 |
Hamilton Sundstrand Corporation | 4525 |
4 |
Graco Minnesota Inc. | 1124 |
4 |
Mueller International, LLC | 694 |
4 |
Piolax Inc. | 388 |
4 |
Toyoda Gosei Co., Ltd. | 1746 |
3 |
Franklin Fueling Systems, LLC | 78 |
3 |
FCA US LLC | 2755 |
2 |
A.r.i. Flow Control Accessories Ltd. | 16 |
2 |
BSH Bosch und Siemens Hausgerate GmbH | 3236 |
2 |
Hydrogarden Wholesale Supplies Limited | 4 |
2 |
Mitsubishi Aircraft Corporation | 197 |
2 |
Odour Technologies Pty Ltd | 3 |
2 |
TLV Co., Ltd. | 336 |
2 |
Vermeer Manufacturing Company | 615 |
2 |
Fluid Power Control Systems, Inc. | 3 |
2 |
Eaton Intelligent Power Limited | 6113 |
2 |
Dürr Dental SE | 74 |
2 |
Teledyne Detcon, Inc. | 44 |
2 |
Other owners | 78 |