- 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 5/34 - Applications of valves
Patent holdings for IPC class F22D 5/34
Total number of patents in this class: 47
10-year publication summary
|
3
|
3
|
2
|
5
|
4
|
5
|
1
|
6
|
2
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Electronics Inc. | 75694 |
5 |
| GE Infrastructure Technology, LLC | 6171 |
5 |
| Alstom Technology Ltd | 1045 |
4 |
| General Electric Technology GmbH | 1337 |
4 |
| Siemens Energy Global GmbH & Co. KG | 3345 |
3 |
| Skavis Corporation | 12 |
2 |
| Xi'an Jiaotong University | 736 |
2 |
| Prince Mohammad Bin Fahd University | 167 |
2 |
| New Watt (Fujian) High-Tech Co. Ltd. | 8 |
2 |
| Siemens AG | 24029 |
1 |
| Alfa Laval Corporate AB | 1337 |
1 |
| B/E Aerospace, Inc. | 1693 |
1 |
| Electrolux Appliances Aktiebolag | 1405 |
1 |
| Furlong Innovations Ltd. | 1 |
1 |
| HORIBA STEC, Co., Ltd. | 366 |
1 |
| Hrst, Inc. | 18 |
1 |
| KEPCO Engineering & Construction Company, Inc. | 79 |
1 |
| Kohler Novita., Ltd. | 8 |
1 |
| Korea Atomic Energy Research Institute | 464 |
1 |
| Korea Hydro & Nuclear Power Co., Ltd. | 562 |
1 |
| Other owners | 7 |