- All sections
- B - Performing operationstransporting
- B04C - Apparatus using free vortex flow, e.g. cyclones
- B04C 3/02 - Apparatus in which the axial direction of the vortex remains unchanged with heating or cooling, e.g. quenching, means
Patent holdings for IPC class B04C 3/02
Total number of patents in this class: 21
10-year publication summary
|
0
|
3
|
0
|
1
|
2
|
2
|
2
|
0
|
1
|
2
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Usui Co., Ltd. | 126 |
3 |
| Enersul Inc. | 10 |
2 |
| Twister B.V. | 37 |
2 |
| Enexor Energy, LLC | 7 |
2 |
| General Electric Company | 13938 |
1 |
| Schlumberger Technology Corporation | 11893 |
1 |
| Schlumberger Canada Limited | 7627 |
1 |
| Schlumberger Technology B.v. | 5302 |
1 |
| Airex Co., Ltd. | 85 |
1 |
| Dieffenbacher GmbH Maschinen- und Anlagenbau | 242 |
1 |
| Kellogg Brown & Root LLC | 524 |
1 |
| Services Petroliers Schlumberger | 6038 |
1 |
| SpineSmith Partners, L.P. | 39 |
1 |
| Vanair Manufacturing, Inc. | 63 |
1 |
| GE Infrastructure Technology, LLC | 6154 |
1 |
| Kyata Capital Inc. | 2 |
1 |
| Other owners | 0 |