- All sections
- B - Performing operations; transporting
- B04C - Apparatus using free vortex flow, e.g. cyclones
- B04C 5/20 - Apparatus in which the axial direction of the vortex is reversed with heating or cooling, e.g. quenching, means
Patent holdings for IPC class B04C 5/20
Total number of patents in this class: 31
10-year publication summary
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0
|
3
|
2
|
0
|
4
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4
|
3
|
4
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4
|
1
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| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| ExxonMobil Chemical Patents Inc. | 4286 |
3 |
| Vortx Kleanair Systems | 4 |
3 |
| AMEC Foster Wheeler Energia Oy | 23 |
2 |
| Doosan Heavy Industries & Construction Co., Ltd. | 604 |
2 |
| Aurora Cannabis Enterprises Inc. | 96 |
2 |
| Revive Environmental Technology, LLC | 15 |
2 |
| Shell Internationale Research Maatschappij B.V. | 3792 |
1 |
| Hitachi, Ltd. | 16452 |
1 |
| The Johns Hopkins University | 5377 |
1 |
| ALD Vacuum Technologies GmbH | 138 |
1 |
| Andritz Oy | 276 |
1 |
| Assured Performance Group (Holdings) Ltd. | 1 |
1 |
| Convex B.V. | 6 |
1 |
| INTECO Special Melting Technologies GmbH | 13 |
1 |
| Korea Institute of Energy Research | 803 |
1 |
| Petroliam Nasional Berhad (petronas) | 298 |
1 |
| Sekisui Chemical Co., Ltd. | 3159 |
1 |
| Sterlite Technologies Limited | 185 |
1 |
| Thales Alenia Space Italia S.p.A. Con Unico Socio | 87 |
1 |
| Twister B.V. | 49 |
1 |
| Other owners | 3 |