- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F28F - Details of heat-exchange or heat-transfer apparatus, of general application
- F28F 21/06 - Constructions of heat-exchange apparatus characterised by the selection of particular materials of plastics material
Patent holdings for IPC class F28F 21/06
Total number of patents in this class: 618
10-year publication summary
|
60
|
79
|
67
|
49
|
47
|
44
|
41
|
25
|
27
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Valeo Systemes Thermiques | 2788 |
24 |
| MAHLE International GmbH | 2839 |
14 |
| Denso Corporation | 24958 |
13 |
| Mitsubishi Electric Corporation | 47267 |
13 |
| Zehnder Group International AG | 400 |
13 |
| Hanon Systems | 2033 |
10 |
| Hamilton Sundstrand Corporation | 4991 |
9 |
| NOVARES France | 145 |
9 |
| Panasonic Intellectual Property Management Co., Ltd. | 32838 |
8 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10981 |
7 |
| Other Lab, LLC | 72 |
7 |
| Mitsui Chemicals, Inc. | 3235 |
6 |
| Sorin Group Italia S.r.l. | 156 |
6 |
| Core Energy Recovery Solutions Inc. | 27 |
6 |
| 3m Innovative Properties Company | 17609 |
5 |
| The Boeing Company | 20085 |
5 |
| Raumedic AG | 143 |
5 |
| U.S. Farathane, LLC | 27 |
5 |
| Copeland LP | 695 |
5 |
| Toyota Motor Corporation | 33878 |
4 |
| Other owners | 444 |