- 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 20/02 - Heat storage plants or apparatus in generalRegenerative heat-exchange apparatus not covered by groups or using latent heat
Patent holdings for IPC class F28D 20/02
Total number of patents in this class: 1742
10-year publication summary
|
138
|
203
|
204
|
180
|
194
|
134
|
142
|
104
|
111
|
53
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Valeo Systemes Thermiques | 2723 |
60 |
| Denso Corporation | 24248 |
53 |
| Hutchinson | 470 |
33 |
| Sunamp Limited | 72 |
26 |
| Sharp Kabushiki Kaisha | 18771 |
24 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10928 |
19 |
| BASF SE | 20912 |
14 |
| Octopus Energy Group Limited | 95 |
14 |
| Siemens AG | 24518 |
13 |
| Phasestor, LLC | 35 |
13 |
| Panasonic Corporation | 20128 |
12 |
| Mitsubishi Electric Corporation | 45998 |
12 |
| Panasonic Intellectual Property Management Co., Ltd. | 31273 |
12 |
| Nostromo Ltd. | 16 |
11 |
| Ford Global Technologies, LLC | 20532 |
10 |
| Raytheon Company | 8397 |
10 |
| Yazaki Energy System Corporation | 97 |
10 |
| Kyungdong Navien Co., Ltd. | 615 |
10 |
| Phase Change Energy Solutions, Inc. | 66 |
10 |
| Exa Energy Technology (Shenzhen) Co., Ltd. | 16 |
10 |
| Other owners | 1366 |