- 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: 900
10-year publication summary
|
101
|
95
|
107
|
95
|
71
|
67
|
60
|
58
|
54
|
23
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| The Boeing Company | 20013 |
15 |
| Hyliion Holdings Corp. | 29 |
14 |
| Toyota Motor Corporation | 31451 |
13 |
| Raytheon Company | 8388 |
12 |
| International Business Machines Corporation | 61023 |
10 |
| Lockheed Martin Corporation | 3278 |
10 |
| The Board of Trustees of the Leland Stanford Junior University | 6365 |
10 |
| Hamilton Sundstrand Corporation | 4832 |
10 |
| BAE SYSTEMS plc | 2327 |
9 |
| Microsoft Technology Licensing, LLC | 53512 |
8 |
| Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | 6118 |
8 |
| General Electric Company | 13829 |
7 |
| Honeywell International Inc. | 13564 |
7 |
| Northrop Grumman Systems Corporation | 2950 |
7 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10837 |
7 |
| Laird Technologies, Inc. | 382 |
7 |
| The Regents of the University of California | 19812 |
6 |
| Intel Corporation | 46699 |
6 |
| Siemens AG | 24561 |
5 |
| Robert Bosch GmbH | 42450 |
5 |
| Other owners | 724 |