- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F28C - Heat-exchange apparatus, not provided for in another subclass, in which the heat-exchange media come into direct contact without chemical interaction
- F28C 3/12 - Other direct-contact heat-exchange apparatus one heat-exchange medium at least being a fluent solid, e.g. a particulate material the heat-exchange medium being a particulate material and a gas, vapour, or liquid
Patent holdings for IPC class F28C 3/12
Total number of patents in this class: 31
10-year publication summary
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3
|
4
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2
|
3
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5
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2
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6
|
3
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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
|
|---|---|---|
| Alliance for Sustainable Energy, LLC | 698 |
3 |
| Purdue Research Foundation | 3277 |
2 |
| Calix Ltd | 86 |
2 |
| ThyssenKrupp Industrial Solutions AG | 729 |
2 |
| Oqab Dietrich Induction Inc. | 45 |
2 |
| Jetcool Technologies, Inc. | 26 |
2 |
| April Pty Ltd | 6 |
2 |
| Massachusetts Institute of Technology | 9795 |
1 |
| Microsoft Technology Licensing, LLC | 51439 |
1 |
| AMEC Foster Wheeler Energia Oy | 23 |
1 |
| Dowa Thermotech Co., Ltd. | 41 |
1 |
| IFP Energies Nouvelles | 2717 |
1 |
| L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 3515 |
1 |
| Linde Aktiengesellschaft | 1600 |
1 |
| Rheinkalk GmbH | 30 |
1 |
| SABIC Global Technologies B.V. | 4044 |
1 |
| Sumitomo Metal Mining Co., Ltd. | 1670 |
1 |
| Vomm Impianti e Processi S.p.A. | 30 |
1 |
| Haffner Energy | 39 |
1 |
| U.S. Bank Trust Co National Association | 78 |
1 |
| Other owners | 3 |