- 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 2/28 - having permeable mass, foraminous or porous materials
Patent holdings for IPC class F24J 2/28
Total number of patents in this class: 35
10-year publication summary
13
|
7
|
8
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Deutsches Zentrum für Luft- und Raumfahrt e.V. | 730 |
4 |
Massachusetts Institute of Technology | 9795 |
3 |
Ibiden Co., Ltd. | 1724 |
3 |
Alstom Technology Ltd | 1196 |
2 |
King Saud University | 332 |
2 |
Siemens AG | 24990 |
1 |
Centre National de La Recherche Scientifique | 9632 |
1 |
Bayer MaterialScience AG | 874 |
1 |
Commissariat à l'énergie atomique et aux energies alternatives | 10525 |
1 |
Alliance for Sustainable Energy, LLC | 698 |
1 |
Electra Holdings Co., Ltd. | 5 |
1 |
Fondazione Bruno Kessler | 40 |
1 |
Hollick Solar Systems Limited | 6 |
1 |
Korea Institute of Energy Research | 803 |
1 |
Kraftanlagen Munchen GmbH | 12 |
1 |
Magaldi Industrie S.r.l. | 23 |
1 |
SunPower Corporation | 612 |
1 |
Tata Steel Ijmuiden B.V. | 283 |
1 |
Thompson Technology Industries, Inc. | 4 |
1 |
Yeda Research and Development Co. Ltd. | 1266 |
1 |
Other owners | 6 |