- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F16K - Valvestapscocksactuating-floatsdevices for venting or aerating
- F16K 1/04 - Lift valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with screw-spindle with a cut-off member rigid with the spindle, e.g. main valves
Patent holdings for IPC class F16K 1/04
Total number of patents in this class: 130
10-year publication summary
|
12
|
9
|
11
|
17
|
18
|
13
|
5
|
11
|
9
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Zhejiang DunAn Artificial Environment Co., Ltd | 491 |
10 |
| SMC Kabushiki Kaisha | 197 |
7 |
| Daikin Industries, Ltd. | 9838 |
4 |
| Engineered Controls International, LLC | 140 |
4 |
| Luneta, LLC | 15 |
4 |
| Aladdin Engineering and Manufacturing, Inc. | 8 |
3 |
| Alcoa of Australia Limited | 52 |
3 |
| EcoWater Systems LLC | 138 |
3 |
| Fujikin Incorporated | 690 |
3 |
| E. I. du Pont de Nemours and Company | 4249 |
2 |
| The Chemours Company Fc, LLC | 1162 |
2 |
| GD Midea Heating & Ventilating Equipment Co., Ltd. | 546 |
2 |
| Reliance Worldwide Corporation | 320 |
2 |
| Rosemount Inc. | 1195 |
2 |
| Sekisui Chemical Co., Ltd. | 3308 |
2 |
| SMC Corporation | 1359 |
2 |
| Tescom Corporation | 122 |
2 |
| Western Enterprises / Scott Fetzer Company | 4 |
2 |
| Yamada Manufacturing Co., Ltd. | 139 |
2 |
| Zhejiang Sanhua Intelligent Controls Co., Ltd. | 199 |
2 |
| Other owners | 67 |