- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F22B - Methods of steam generation; steam boilers
- F22B 37/58 - Removing tubes from headers or drums; Extracting tools
Patent holdings for IPC class F22B 37/58
Total number of patents in this class: 7
10-year publication summary
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0
|
1
|
1
|
2
|
0
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0
|
1
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0
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4
|
0
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| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Heavy Industries, Ltd. | 8217 |
2 |
| Areva NP | 228 |
2 |
| Charger Energy Services | 2 |
2 |
| WTX Oil Fields Services, LLC | 1 |
1 |
| Other owners | 0 |