- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F22B - Methods of steam generation; steam 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: 195
10-year publication summary
|
11
|
16
|
19
|
17
|
18
|
14
|
8
|
10
|
4
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Westinghouse Electric Company LLC | 1087 |
15 |
| Siemens AG | 24990 |
7 |
| Framatome GmbH | 246 |
7 |
| De'Longhi Appliances S.R.L. Con Unico Socio | 358 |
5 |
| International Paper Company | 857 |
5 |
| XDI Holdings, LLC | 68 |
5 |
| Dos Viejos Amigos, LLC | 5 |
5 |
| Mitsubishi Power, Ltd. | 1680 |
5 |
| Mitsubishi Hitachi Power Systems, Ltd. | 999 |
4 |
| Pyrogenesis Canada, Inc. | 67 |
4 |
| Kawasaki Jukogyo Kabushiki Kaisha (trading as Kawasaki Heavy Industries, Ltd.) | 2856 |
4 |
| Versuni Holding B.V. | 817 |
4 |
| Illinois Tool Works Inc. | 11152 |
3 |
| Boyle Energy Services & Technology, Inc. | 4 |
3 |
| Hitachi Zosen Corporation | 609 |
3 |
| Statoil Petroleum AS | 555 |
3 |
| Clyde Industries Inc. | 16 |
3 |
| Best Energy Services, Inc. | 4 |
3 |
| Mitsubishi Heavy Industries, Ltd. | 8217 |
2 |
| Andritz Oy | 276 |
2 |
| Other owners | 103 |