- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F28C - Heat-exchange apparatus, not provided for in another subclass, in which the heat-exchange media come into direct contact without chemical interaction
- F28C 3/00 - Other direct-contact heat-exchange apparatus
Patent holdings for IPC class F28C 3/00
Total number of patents in this class: 62
10-year publication summary
3
|
5
|
7
|
2
|
7
|
5
|
4
|
6
|
5
|
3
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
The Boeing Company | 19843 |
4 |
Honeywell International Inc. | 13799 |
2 |
Hon Hai Precision Industry Co., Ltd. | 4157 |
2 |
Tsinghua University | 5426 |
2 |
Koch-Glitsch, LP | 204 |
2 |
MAHLE Behr GmbH & Co. KG | 49 |
2 |
Phillips 66 Company | 1073 |
2 |
Rebound Technologies, Inc. | 27 |
2 |
Valeo Systemes Thermiques | 2471 |
2 |
3m Innovative Properties Company | 18406 |
1 |
Robert Bosch GmbH | 40953 |
1 |
Tokyo Electron Limited | 11599 |
1 |
NGK Insulators, Ltd. | 4589 |
1 |
Alstom Technology Ltd | 1196 |
1 |
Hamilton Sundstrand Corporation | 4525 |
1 |
Nippon Telegraph and Telephone Corporation | 14195 |
1 |
Agency for Science, Technology and Research | 3512 |
1 |
Purdue Research Foundation | 3277 |
1 |
Advanced Green Technologies, LLC | 48 |
1 |
Alliance for Sustainable Energy, LLC | 698 |
1 |
Other owners | 31 |