- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- 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: 1126
10-year publication summary
|
122
|
134
|
98
|
127
|
98
|
74
|
76
|
78
|
60
|
16
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Electric Corporation | 47511 |
118 |
| Valeo Systemes Thermiques | 2805 |
86 |
| Daikin Industries, Ltd. | 10380 |
79 |
| Denso Corporation | 25115 |
35 |
| Hanon Systems | 2059 |
29 |
| Hamilton Sundstrand Corporation | 5013 |
28 |
| Carrier Corporation | 3971 |
28 |
| MAHLE International GmbH | 2864 |
28 |
| Sanhua (Hangzhou) Micro Channel Heat Exchanger Co., Ltd. | 150 |
25 |
| UACJ Corporation | 721 |
19 |
| Zhejiang DunAn Artificial Environment Co., Ltd | 637 |
19 |
| Evapco, Inc. | 301 |
17 |
| T.RAD Co., Ltd. | 105 |
17 |
| Modine Manufacturing Company | 305 |
15 |
| Fujitsu General Limited | 623 |
13 |
| Nippon Light Metal Company, Ltd. | 678 |
11 |
| Hangzhou Sanhua Research Institute Co., Ltd. | 177 |
10 |
| LG Electronics Inc. | 74791 |
9 |
| Rtx Corporation | 9825 |
9 |
| Baltimore Aircoil Company, Inc. | 179 |
8 |
| Other owners | 523 |