- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F28D - Heat-exchange apparatus, not provided for in another subclass, in which the heat-exchange media do not come into direct contactheat storage plants or apparatus in general
- F28D 11/02 - Heat-exchange apparatus employing moving conduits the movement being rotary, e.g. performed by a drum or roller
Patent holdings for IPC class F28D 11/02
Total number of patents in this class: 81
10-year publication summary
|
9
|
8
|
4
|
7
|
9
|
4
|
5
|
5
|
6
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nativus, Inc. | 6 |
4 |
| Aisin Seiki Kabushiki Kaisha | 2284 |
3 |
| Beijing Shenwu Environment and Energy Technology Co., Ltd. | 18 |
3 |
| Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V. | 4810 |
2 |
| Hydro-Quebec | 645 |
2 |
| Jinchuan Group Co., Ltd. | 11 |
2 |
| Nara Machinery Co., Ltd. | 34 |
2 |
| National Technology & Engineering Solutions of Sandia, LLC | 1885 |
2 |
| Ireliemar B.V. | 2 |
2 |
| MOROZ, Maksim Nikolaevich | 2 |
2 |
| SAVIN, Pavel Alekseevich | 2 |
2 |
| The Boeing Company | 19915 |
1 |
| Deere & Company | 7348 |
1 |
| Pratt & Whitney Canada Corp. | 4445 |
1 |
| Panasonic Corporation | 20313 |
1 |
| Ricoh Company, Ltd. | 13222 |
1 |
| Denso Corporation | 23803 |
1 |
| Mitsubishi Electric Corporation | 44904 |
1 |
| Sandia Corporation | 96 |
1 |
| Whirlpool Corporation | 4340 |
1 |
| Other owners | 46 |