- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F28D - Heat-exchange apparatus, not provided for in another subclass, in which the heat-exchange media do not come into direct contact; heat storage plants or apparatus in general
- F28D 11/04 - Heat-exchange apparatus employing moving conduits the movement being rotary, e.g. performed by a drum or roller performed by a tube or a bundle of tubes
Patent holdings for IPC class F28D 11/04
Total number of patents in this class: 24
10-year publication summary
|
1
|
5
|
4
|
0
|
6
|
2
|
4
|
2
|
2
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Allgaier Werke GmbH | 86 |
3 |
| Grenzebach BSH GmbH | 55 |
3 |
| Yoshino Gypsum Co., Ltd. | 224 |
3 |
| ECOP Technologies GmbH | 8 |
2 |
| National Technology & Engineering Solutions of Sandia, LLC | 1851 |
2 |
| General Electric Company | 18133 |
1 |
| Appollo Wind Technologies LLC | 8 |
1 |
| Commonwealth Scientific and Industrial Research Organisation | 1652 |
1 |
| Kajima Corporation | 87 |
1 |
| Phononic Devices, Inc. | 23 |
1 |
| Rotoboost AS | 6 |
1 |
| Solray Holdings Limited | 4 |
1 |
| Tohoku University | 2526 |
1 |
| FEDDEM GmbH & Co. KG | 15 |
1 |
| Simm Toscana S.r.l. | 1 |
1 |
| Pengchen New Material Technology Co., Ltd. | 44 |
1 |
| Other owners | 0 |