- 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: 943
10-year publication summary
|
95
|
107
|
95
|
71
|
67
|
65
|
62
|
59
|
44
|
28
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| The Boeing Company | 20193 |
16 |
| Toyota Motor Corporation | 36159 |
14 |
| Hyliion Holdings Corp. | 37 |
14 |
| Raytheon Company | 8443 |
12 |
| The Board of Trustees of the Leland Stanford Junior University | 6711 |
11 |
| International Business Machines Corporation | 62805 |
10 |
| Lockheed Martin Corporation | 3255 |
10 |
| Hamilton Sundstrand Corporation | 5011 |
10 |
| Microsoft Technology Licensing, LLC | 54586 |
9 |
| BAE SYSTEMS plc | 2519 |
9 |
| Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | 6102 |
8 |
| General Electric Company | 13982 |
7 |
| The Regents of the University of California | 20902 |
7 |
| Northrop Grumman Systems Corporation | 2913 |
7 |
| Commissariat à l'énergie atomique et aux energies alternatives | 11130 |
7 |
| Laird Technologies, Inc. | 374 |
7 |
| Honeywell International Inc. | 12766 |
6 |
| Intel Corporation | 46292 |
6 |
| Hanon Systems | 2133 |
6 |
| Bluefors Oy | 57 |
6 |
| Other owners | 761 |