- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F28F - Details of heat-exchange or heat-transfer apparatus, of general application
- F28F 1/02 - Tubular elements of cross-section which is non-circular
Patent holdings for IPC class F28F 1/02
Total number of patents in this class: 1070
10-year publication summary
|
85
|
125
|
139
|
100
|
130
|
99
|
73
|
78
|
74
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Electric Corporation | 44678 |
112 |
| Valeo Systemes Thermiques | 2593 |
82 |
| Daikin Industries, Ltd. | 9766 |
72 |
| Denso Corporation | 23692 |
33 |
| Hanon Systems | 1810 |
29 |
| Hamilton Sundstrand Corporation | 4712 |
26 |
| Carrier Corporation | 4443 |
26 |
| MAHLE International GmbH | 2687 |
23 |
| Sanhua (Hangzhou) Micro Channel Heat Exchanger Co., Ltd. | 128 |
20 |
| UACJ Corporation | 666 |
20 |
| Evapco, Inc. | 271 |
16 |
| Modine Manufacturing Company | 297 |
16 |
| T.RAD Co., Ltd. | 99 |
16 |
| Zhejiang DunAn Artificial Environment Co., Ltd | 488 |
15 |
| Fujitsu General Limited | 579 |
12 |
| Nippon Light Metal Company, Ltd. | 650 |
11 |
| Hangzhou Sanhua Research Institute Co., Ltd. | 172 |
10 |
| LG Electronics Inc. | 70831 |
9 |
| Calsonic Kansei Corporation | 668 |
9 |
| Rtx Corporation | 9069 |
8 |
| Other owners | 505 |