- 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: 437
10-year publication summary
|
45
|
50
|
42
|
53
|
34
|
27
|
35
|
28
|
25
|
15
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| General Electric Company | 14021 |
30 |
| Hamilton Sundstrand Corporation | 5012 |
27 |
| Hyliion Holdings Corp. | 37 |
14 |
| The Boeing Company | 20232 |
11 |
| Rtx Corporation | 10240 |
11 |
| Unison Industries, LLC | 220 |
10 |
| NGK Insulators, Ltd. | 5169 |
9 |
| Corning Incorporated | 10560 |
8 |
| Safran Aero Boosters SA | 185 |
8 |
| Ford Global Technologies, LLC | 21657 |
7 |
| Raytheon Company | 8457 |
6 |
| Lockheed Martin Corporation | 3265 |
6 |
| Alfa Laval Corporate AB | 1347 |
6 |
| Hieta Technologies Limited | 29 |
6 |
| MAHLE International GmbH | 2931 |
6 |
| Toyota Motor Corporation | 36465 |
5 |
| DENSO International America, Inc. | 646 |
5 |
| Valeo Systemes Thermiques | 2819 |
5 |
| Northrop Grumman Systems Corporation | 2912 |
4 |
| Daikin Industries, Ltd. | 10546 |
4 |
| Other owners | 249 |