- 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: 1839
10-year publication summary
|
203
|
204
|
180
|
194
|
134
|
142
|
104
|
120
|
101
|
70
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Valeo Systemes Thermiques | 2822 |
60 |
| Denso Corporation | 25495 |
54 |
| Hutchinson | 489 |
33 |
| Sunamp Limited | 75 |
25 |
| Sharp Kabushiki Kaisha | 18540 |
25 |
| Commissariat à l'énergie atomique et aux energies alternatives | 11126 |
19 |
| Phasestor, LLC | 41 |
17 |
| Exa Energy Technology (Shenzhen) Co., Ltd. | 25 |
16 |
| BASF SE | 21313 |
14 |
| Octopus Energy Group Limited | 54 |
14 |
| Siemens AG | 24050 |
13 |
| Panasonic Corporation | 19103 |
13 |
| Mitsubishi Electric Corporation | 47943 |
12 |
| Panasonic Intellectual Property Management Co., Ltd. | 33845 |
12 |
| Nostromo Ltd. | 16 |
11 |
| Ford Global Technologies, LLC | 21466 |
10 |
| Raytheon Company | 8456 |
10 |
| Yazaki Energy System Corporation | 99 |
10 |
| Dow Global Technologies LLC | 10919 |
10 |
| Firmenich SA | 1758 |
10 |
| Other owners | 1451 |