- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- 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: 27
10-year publication summary
|
2
|
2
|
1
|
0
|
0
|
3
|
1
|
2
|
2
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Casale SA | 625 |
2 |
| Shell Internationale Research Maatschappij B.V. | 3461 |
1 |
| The Regents of the University of California | 20506 |
1 |
| ZTE Corporation | 43576 |
1 |
| Uop LLC | 4307 |
1 |
| Microsoft Technology Licensing, LLC | 54215 |
1 |
| Hamilton Sundstrand Corporation | 5014 |
1 |
| Alterna Energy Inc. | 3 |
1 |
| Blasch Precision Ceramics, Inc. | 40 |
1 |
| Bosal Emission Control Systems N.V. | 27 |
1 |
| Cremer Thermoprozessanlagen GmbH | 1 |
1 |
| Durr Systems GmbH | 266 |
1 |
| INEOS Europe AG | 206 |
1 |
| Intex Holdings Pty Ltd | 20 |
1 |
| L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 4050 |
1 |
| Nortek Air Solutions Canada, Inc. | 124 |
1 |
| Safran Aircraft Engines | 6532 |
1 |
| Solar Turbines Incorporated | 504 |
1 |
| Superior Radiant Products Ltd. | 32 |
1 |
| Recutech s.r.o. | 2 |
1 |
| Other owners | 6 |