- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F22B - Methods of steam generationsteam boilers
- F22B 37/56 - Boiler-cleaning control devices, e.g. for ascertaining proper duration of boiler blow-down
Patent holdings for IPC class F22B 37/56
Total number of patents in this class: 86
10-year publication summary
|
5
|
3
|
3
|
5
|
12
|
7
|
3
|
7
|
6
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kurita Water Industries Ltd. | 1292 |
11 |
| Andritz Oy | 294 |
8 |
| International Paper Company | 598 |
7 |
| Miura Co., Ltd. | 284 |
6 |
| Mitsubishi Power, Ltd. | 1837 |
5 |
| Siemens AG | 23972 |
3 |
| Mitsubishi Heavy Industries, Ltd. | 9188 |
3 |
| Mitsubishi Hitachi Power Systems, Ltd. | 991 |
3 |
| Heat IP Holdco, LLC | 49 |
3 |
| Fuji Electric Co., Ltd. | 5526 |
2 |
| Clyde Bergemann, Inc. | 9 |
2 |
| Explo Engineering AG | 20 |
2 |
| Korea Institute of Industrial Technology | 1032 |
2 |
| Omachron Intellectual Property Inc. | 970 |
2 |
| Framatome GmbH | 254 |
2 |
| CheMin GmbH | 15 |
2 |
| Siemens Energy Global GmbH & Co. KG | 3461 |
2 |
| Massachusetts Institute of Technology | 10290 |
1 |
| Boyle Energy Services & Technology, Inc. | 4 |
1 |
| Clyde Bergemann GmbH Maschinen-Und Apparatebau | 11 |
1 |
| Other owners | 18 |