- 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: 406
10-year publication summary
|
25
|
45
|
50
|
42
|
53
|
34
|
26
|
33
|
23
|
11
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| General Electric Company | 13767 |
29 |
| Hamilton Sundstrand Corporation | 4865 |
24 |
| Hyliion Holdings Corp. | 30 |
14 |
| The Boeing Company | 20051 |
11 |
| Rtx Corporation | 9360 |
11 |
| Unison Industries, LLC | 208 |
10 |
| NGK Insulators, Ltd. | 4949 |
9 |
| Safran Aero Boosters SA | 182 |
8 |
| Corning Incorporated | 10257 |
7 |
| Ford Global Technologies, LLC | 20548 |
6 |
| Raytheon Company | 8393 |
6 |
| Lockheed Martin Corporation | 3277 |
6 |
| Alfa Laval Corporate AB | 1311 |
6 |
| Toyota Motor Corporation | 31985 |
5 |
| DENSO International America, Inc. | 615 |
5 |
| Hieta Technologies Limited | 26 |
5 |
| MAHLE International GmbH | 2765 |
5 |
| OVH | 301 |
5 |
| Valeo Systemes Thermiques | 2730 |
5 |
| Northrop Grumman Systems Corporation | 2942 |
4 |
| Other owners | 225 |