- 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 3/14 - 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 the particulate material moving by gravity, e.g. down a tube
Patent holdings for IPC class F28C 3/14
Total number of patents in this class: 26
10-year publication summary
1
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3
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5
|
1
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2
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1
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3
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2
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1
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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
|
---|---|---|
Calix Ltd | 86 |
3 |
Sumitomo Metal Mining Co., Ltd. | 1670 |
3 |
Alstom Technology Ltd | 1196 |
2 |
Purdue Research Foundation | 3277 |
2 |
Alliance for Sustainable Energy, LLC | 698 |
2 |
Beteiligungen Sorg GmbH & Co. KG | 45 |
2 |
Farmet A.S. | 33 |
2 |
General Electric Company | 18133 |
1 |
Siemens Energy, Inc. | 1770 |
1 |
Commissariat à l'énergie atomique et aux energies alternatives | 10525 |
1 |
AGREX S.p.A. | 12 |
1 |
Deutsches Zentrum für Luft- und Raumfahrt e.V. | 730 |
1 |
General Electric Technology GmbH | 1657 |
1 |
SABIC Global Technologies B.V. | 4044 |
1 |
SRI International | 974 |
1 |
Haffner Energy | 39 |
1 |
CM Shredders, L.L.C. | 2 |
1 |
Other owners | 0 |