- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F22B - Methods of steam generation; steam boilers
- F22B 37/52 - Washing-out devices
Patent holdings for IPC class F22B 37/52
Total number of patents in this class: 72
10-year publication summary
5
|
7
|
7
|
7
|
5
|
7
|
1
|
0
|
3
|
0
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Kurita Water Industries Ltd. | 1110 |
18 |
Varo Teollisuuspalvelut Oy | 13 |
5 |
Mitsubishi Heavy Industries, Ltd. | 8217 |
4 |
Mitsubishi Hitachi Power Systems, Ltd. | 999 |
4 |
Siemens AG | 24990 |
3 |
International Paper Company | 857 |
3 |
Joint Stock Company "atomenergoproekt" | 78 |
3 |
Best Energy Services, Inc. | 4 |
3 |
Her Majesty the Queen in right of Canada, as represented by the Minister of Natural Resources | 105 |
2 |
Mac & Mac Hydrodemolition Inc. | 48 |
2 |
Skavis Corporation | 13 |
2 |
Westinghouse Electric Company LLC | 1087 |
2 |
Alfa Laval Corporate AB | 1265 |
1 |
Andritz Inc. | 344 |
1 |
BORSIG GmbH | 17 |
1 |
Boyle Energy Services & Technology, Inc. | 4 |
1 |
China General Nuclear Power Group | 41 |
1 |
Clyde Bergemann GmbH | 8 |
1 |
Her Majesty The Queen in Right of Canada AS represented by The Minister of Natural Resources Canada | 89 |
1 |
Hydro-Thermal Corporation | 28 |
1 |
Other owners | 13 |