- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F28F - Details of heat-exchange or heat-transfer apparatus, of general application
- F28F 7/02 - Blocks traversed by passages for heat-exchange media
Patent holdings for IPC class F28F 7/02
Total number of patents in this class: 420
10-year publication summary
|
36
|
43
|
39
|
48
|
33
|
24
|
31
|
24
|
23
|
4
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| General Electric Company | 13819 |
30 |
| Hamilton Sundstrand Corporation | 5014 |
26 |
| Hyliion Holdings Corp. | 36 |
14 |
| The Boeing Company | 20094 |
11 |
| Rtx Corporation | 9851 |
11 |
| Unison Industries, LLC | 211 |
10 |
| NGK Insulators, Ltd. | 5186 |
9 |
| Safran Aero Boosters SA | 185 |
8 |
| Ford Global Technologies, LLC | 21263 |
7 |
| Corning Incorporated | 10420 |
7 |
| Raytheon Company | 8463 |
6 |
| Lockheed Martin Corporation | 3278 |
6 |
| Alfa Laval Corporate AB | 1328 |
6 |
| Toyota Motor Corporation | 34545 |
5 |
| DENSO International America, Inc. | 632 |
5 |
| Hieta Technologies Limited | 27 |
5 |
| MAHLE International GmbH | 2879 |
5 |
| Valeo Systemes Thermiques | 2809 |
5 |
| Northrop Grumman Systems Corporation | 2929 |
4 |
| Daikin Industries, Ltd. | 10375 |
4 |
| Other owners | 236 |