- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F28F - Details of heat-exchange or heat-transfer apparatus, of general application
- F28F 13/00 - Arrangements for modifying heat transfer, e.g. increasing, decreasing
Patent holdings for IPC class F28F 13/00
Total number of patents in this class: 933
10-year publication summary
|
95
|
107
|
95
|
71
|
67
|
65
|
62
|
58
|
43
|
20
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| The Boeing Company | 20145 |
16 |
| Toyota Motor Corporation | 35500 |
14 |
| Hyliion Holdings Corp. | 36 |
14 |
| Raytheon Company | 8460 |
12 |
| The Board of Trustees of the Leland Stanford Junior University | 6643 |
11 |
| International Business Machines Corporation | 62596 |
10 |
| Lockheed Martin Corporation | 3267 |
10 |
| Hamilton Sundstrand Corporation | 5019 |
10 |
| Microsoft Technology Licensing, LLC | 54410 |
9 |
| BAE SYSTEMS plc | 2470 |
9 |
| Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | 6113 |
8 |
| General Electric Company | 13886 |
7 |
| The Regents of the University of California | 20690 |
7 |
| Northrop Grumman Systems Corporation | 2917 |
7 |
| Commissariat à l'énergie atomique et aux energies alternatives | 11118 |
7 |
| Laird Technologies, Inc. | 376 |
7 |
| Honeywell International Inc. | 12776 |
6 |
| Intel Corporation | 47048 |
6 |
| Hanon Systems | 2096 |
6 |
| Bluefors Oy | 51 |
6 |
| Other owners | 751 |