- 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 3/02 - Other direct-contact heat-exchange apparatus the heat-exchange media both being gases or vapours
Patent holdings for IPC class F28C 3/02
Total number of patents in this class: 26
10-year publication summary
2
|
6
|
2
|
2
|
1
|
0
|
0
|
4
|
2
|
1
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Casale SA | 572 |
3 |
Intex Holdings Pty Ltd | 29 |
2 |
Shell Internationale Research Maatschappij B.V. | 3792 |
1 |
The Regents of the University of California | 18943 |
1 |
The Boeing Company | 19843 |
1 |
ZTE Corporation | 39218 |
1 |
Microsoft Technology Licensing, LLC | 51439 |
1 |
Hamilton Sundstrand Corporation | 4525 |
1 |
Alterna Energy Inc. | 3 |
1 |
Blasch Precision Ceramics, Inc. | 36 |
1 |
Bosal Emission Control Systems N.V. | 27 |
1 |
Cremer Thermoprozessanlagen GmbH | 1 |
1 |
Durr Systems GmbH | 281 |
1 |
INEOS Europe AG | 188 |
1 |
Nortek Air Solutions Canada, Inc. | 114 |
1 |
Safran Aircraft Engines | 5739 |
1 |
Solar Turbines Incorporated | 452 |
1 |
Superior Radiant Products Ltd. | 31 |
1 |
Recutech s.r.o. | 3 |
1 |
Zoltrix (hip) International Limited | 1 |
1 |
Other owners | 3 |