- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F22B - Methods of steam generationsteam boilers
- F22B 37/48 - Devices or arrangements for removing water, minerals or sludge from boilers
Patent holdings for IPC class F22B 37/48
Total number of patents in this class: 192
10-year publication summary
|
15
|
18
|
13
|
16
|
13
|
9
|
11
|
4
|
4
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Westinghouse Electric Company LLC | 1142 |
17 |
| Siemens AG | 24453 |
7 |
| Framatome GmbH | 252 |
7 |
| De'Longhi Appliances S.R.L. Con Unico Socio | 387 |
5 |
| Groome Industrial Service Group, LLC | 14 |
5 |
| Mitsubishi Power, Ltd. | 1772 |
5 |
| Andritz Oy | 284 |
4 |
| International Paper Company | 788 |
4 |
| Mitsubishi Hitachi Power Systems, Ltd. | 993 |
4 |
| Pyrogenesis Canada, Inc. | 67 |
4 |
| Kawasaki Jukogyo Kabushiki Kaisha (trading as Kawasaki Heavy Industries, Ltd.) | 3035 |
4 |
| Versuni Holding B.V. | 950 |
4 |
| Illinois Tool Works Inc. | 11478 |
3 |
| Mitsubishi Heavy Industries, Ltd. | 8752 |
3 |
| Boyle Energy Services & Technology, Inc. | 4 |
3 |
| Hitachi Zosen Corporation | 617 |
3 |
| Statoil Petroleum AS | 524 |
3 |
| Condor Technologies, Inc. | 3 |
3 |
| Heat IP Holdco, LLC | 49 |
3 |
| Brais Malouin and Associates Inc. | 2 |
2 |
| Other owners | 99 |