- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F22B - Methods of steam generationsteam boilers
- F22B 37/54 - De-sludging or blow-down devices
Patent holdings for IPC class F22B 37/54
Total number of patents in this class: 71
10-year publication summary
|
3
|
7
|
8
|
4
|
2
|
4
|
2
|
2
|
3
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Westinghouse Electric Company LLC | 1199 |
5 |
| Groome Industrial Service Group, LLC | 13 |
5 |
| SEB S.A. | 1676 |
3 |
| Stoneage, Inc. | 285 |
3 |
| Nooter/eriksen, Inc. | 69 |
3 |
| Brais Malouin and Associates Inc. | 2 |
2 |
| Explo Engineering AG | 20 |
2 |
| GREE Electric Appliances, Inc. of Zhuhai | 3320 |
2 |
| Ingenica Ingenierie Industrielle | 2 |
2 |
| International Paper Company | 598 |
2 |
| Miura Co., Ltd. | 284 |
2 |
| Power & Control Solutions, Inc. | 4 |
2 |
| Koninklijke Philips Electronics N.V. | 7211 |
1 |
| Panasonic Intellectual Property Management Co., Ltd. | 34403 |
1 |
| Andritz Inc. | 325 |
1 |
| Arcelik A.S. | 3364 |
1 |
| Bang & Clean GmbH | 27 |
1 |
| BORSIG GmbH | 18 |
1 |
| Boyle Energy Services & Technology, Inc. | 4 |
1 |
| BWXT Canada, Ltd. | 39 |
1 |
| Other owners | 30 |