- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F16K - Valvestapscocksactuating-floatsdevices for venting or aerating
- F16K 17/20 - Excess-flow valves
Patent holdings for IPC class F16K 17/20
Total number of patents in this class: 120
10-year publication summary
|
14
|
8
|
12
|
15
|
9
|
9
|
8
|
6
|
4
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| BrassCraft Manufacturing Company | 79 |
6 |
| Dresser LLC | 250 |
5 |
| Fisher Jeon Gas Equipment (Chengdu) Co., Ltd. | 41 |
4 |
| Solar Water Solutions Oy | 11 |
3 |
| Rtx Corporation | 9114 |
3 |
| Hamilton Sundstrand Corporation | 4737 |
2 |
| China University of Mining and Technology | 1226 |
2 |
| Emerson Process Management Regulator Technologies, Inc. | 378 |
2 |
| Fisher Controls International LLC | 1515 |
2 |
| Lorax Systems, Inc. | 8 |
2 |
| National Oilwell Varco, L.P. | 1626 |
2 |
| Sparkling Drink Systems - Innovation Center S.r.l. | 2 |
2 |
| Woongjin Coway Co., Ltd. | 153 |
2 |
| Zhejiang Sanhua Co., Ltd. | 40 |
2 |
| Sparkling Drink Systems Innovation Center Limited | 3 |
2 |
| Shanghai Fiorentini Gas Equipment Co., Ltd | 13 |
2 |
| Illinois Tool Works Inc. | 11404 |
1 |
| Honda Motor Co., Ltd. | 24878 |
1 |
| Pratt & Whitney Canada Corp. | 4445 |
1 |
| Airbus Operations S.A.S. | 2449 |
1 |
| Other owners | 73 |