- 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: 122
10-year publication summary
|
8
|
12
|
15
|
9
|
9
|
8
|
6
|
5
|
7
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| BrassCraft Manufacturing Company | 77 |
6 |
| Dresser LLC | 294 |
5 |
| Fisher Jeon Gas Equipment (Chengdu) Co., Ltd. | 45 |
4 |
| Rtx Corporation | 10102 |
3 |
| Hamilton Sundstrand Corporation | 5015 |
2 |
| China University of Mining and Technology | 1308 |
2 |
| Emerson Process Management Regulator Technologies, Inc. | 391 |
2 |
| Fisher Controls International LLC | 1457 |
2 |
| National Oilwell Varco, L.P. | 1699 |
2 |
| Solar Water Solutions Oy | 10 |
2 |
| Sparkling Drink Systems - Innovation Center S.r.l. | 2 |
2 |
| TPE Midstream LLC | 62 |
2 |
| Woongjin Coway Co., Ltd. | 131 |
2 |
| Zhejiang DunAn Artificial Environment Co., Ltd | 703 |
2 |
| Zhejiang Sanhua Co., Ltd. | 40 |
2 |
| Sparkling Drink Systems Innovation Center Limited | 3 |
2 |
| Shanghai Fiorentini Gas Equipment Co., Ltd | 17 |
2 |
| Shanghai Institute of Space Propulsion | 15 |
2 |
| Illinois Tool Works Inc. | 11863 |
1 |
| Honda Motor Co., Ltd. | 26025 |
1 |
| Other owners | 74 |