- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F28F - Details of heat-exchange or heat-transfer apparatus, of general application
- F28F 13/08 - Arrangements for modifying heat transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by varying the cross-section of the flow channels
Patent holdings for IPC class F28F 13/08
Total number of patents in this class: 409
10-year publication summary
|
50
|
35
|
35
|
42
|
34
|
32
|
30
|
15
|
18
|
6
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hamilton Sundstrand Corporation | 5017 |
14 |
| Mitsubishi Electric Corporation | 47602 |
13 |
| Acer Incorporated | 2146 |
9 |
| Rtx Corporation | 9875 |
8 |
| Denso Corporation | 25183 |
7 |
| Safran Aero Boosters SA | 185 |
7 |
| Valeo Systemes Thermiques | 2810 |
7 |
| General Electric Company | 13831 |
6 |
| Daikin Industries, Ltd. | 10384 |
6 |
| Dow Global Technologies LLC | 10770 |
6 |
| Sumitomo Precision Products Co., Ltd. | 321 |
6 |
| Safran Aero Boosters | 123 |
6 |
| The Boeing Company | 20097 |
4 |
| AIC S.A. | 50 |
4 |
| Alfa Laval Corporate AB | 1329 |
4 |
| Goodman Manufacturing Company, L.P., Goodman Holding Company, a Texas corporation, its General Partner | 143 |
4 |
| IHI Corporation | 3514 |
4 |
| Intergas Heating Assets B.V. | 30 |
4 |
| SAFRAN S.A. | 644 |
3 |
| International Business Machines Corporation | 62220 |
3 |
| Other owners | 284 |