- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F22B - Methods of steam generationsteam 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
|
7
|
7
|
5
|
7
|
1
|
0
|
3
|
1
|
5
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kurita Water Industries Ltd. | 1294 |
19 |
| Varo Teollisuuspalvelut Oy | 13 |
5 |
| Mitsubishi Hitachi Power Systems, Ltd. | 991 |
4 |
| Siemens AG | 23913 |
3 |
| Mitsubishi Heavy Industries, Ltd. | 9231 |
3 |
| International Paper Company | 595 |
3 |
| Westinghouse Electric Company LLC | 1198 |
3 |
| Wave Impact Heat Management AB | 8 |
3 |
| Her Majesty the Queen in right of Canada, as represented by the Minister of Natural Resources | 105 |
2 |
| Joint Stock Company "atomenergoproekt" | 73 |
2 |
| Mac & Mac Hydrodemolition Inc. | 49 |
2 |
| Skavis Corporation | 12 |
2 |
| Kohler Co. | 4139 |
1 |
| Alfa Laval Corporate AB | 1345 |
1 |
| Andritz Inc. | 324 |
1 |
| BORSIG GmbH | 18 |
1 |
| Boyle Energy Services & Technology, Inc. | 4 |
1 |
| China General Nuclear Power Group | 46 |
1 |
| Her Majesty The Queen in Right of Canada AS represented by The Minister of Natural Resources Canada | 48 |
1 |
| Hydro-Thermal Corporation | 28 |
1 |
| Other owners | 13 |