- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F24J - Production or use of heat not otherwise provided for (materials therefor C09K 5/00;engines or other mechanisms for producing mechanical power from heat, see the relevant classes, e.g. f03g for using natural heat)
- F24J 2/22 - having extended surfaces, e.g. protrusions, corrugations (F24J 2/28 takes precedence)
Patent holdings for IPC class F24J 2/22
Total number of patents in this class: 12
10-year publication summary
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2
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0
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3
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0
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0
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0
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0
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0
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0
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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
|
|---|---|---|
| 3m Innovative Properties Company | 18406 |
1 |
| Centre National de La Recherche Scientifique | 9632 |
1 |
| Hon Hai Precision Industry Co., Ltd. | 4157 |
1 |
| Tsinghua University | 5426 |
1 |
| HelioFocus Ltd. | 12 |
1 |
| LRM Industries International, Inc. | 13 |
1 |
| Rehau AG + Co | 419 |
1 |
| Sun Master Energiesysteme GmbH | 2 |
1 |
| System S.p.A. | 53 |
1 |
| Zero Mass Water, Inc. | 13 |
1 |
| Universitat Kassel | 88 |
1 |
| Wisch Engineering GmbH | 1 |
1 |
| Other owners | 0 |