- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F22D - Preheating, or accumulating preheated, feed-water for steam generationfeed-water supply for steam generationcontrolling water level for steam generationauxiliary devices for promoting water circulation within steam boilers
- F22D 5/30 - Automatic feed-control systems responsive to both water level and amount of steam withdrawn or steam pressure
Patent holdings for IPC class F22D 5/30
Total number of patents in this class: 19
10-year publication summary
|
4
|
1
|
0
|
2
|
1
|
2
|
1
|
1
|
1
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| GE Infrastructure Technology, LLC | 6155 |
5 |
| Siemens Energy Global GmbH & Co. KG | 3470 |
2 |
| Siemens AG | 23956 |
1 |
| Mitsubishi Heavy Industries, Ltd. | 9204 |
1 |
| Hitachi, Ltd. | 16206 |
1 |
| Alfa Laval Corporate AB | 1343 |
1 |
| HORIBA STEC, Co., Ltd. | 366 |
1 |
| Hrst, Inc. | 18 |
1 |
| KEPCO Engineering & Construction Company, Inc. | 80 |
1 |
| Miura Co., Ltd. | 285 |
1 |
| SABIC Global Technologies B.V. | 4625 |
1 |
| TLV Co., Ltd. | 339 |
1 |
| Framatome GmbH | 254 |
1 |
| China Energy Engineering Eastern Electric Power Testing Research Institute Co., Ltd. | 1 |
1 |
| Other owners | 0 |