- All sections
- B - Performing operations; transporting
- B04C - Apparatus using free vortex flow, e.g. cyclones
- B04C 3/04 - Multiple arrangement thereof
Patent holdings for IPC class B04C 3/04
Total number of patents in this class: 116
10-year publication summary
|
14
|
6
|
22
|
11
|
8
|
8
|
5
|
4
|
7
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| MANN+HUMMEL GmbH | 1722 |
17 |
| LG Electronics Inc. | 70898 |
8 |
| Uop LLC | 4187 |
5 |
| Enverid Systems, Inc. | 79 |
5 |
| V-stax, LLC | 8 |
4 |
| Shell Internationale Research Maatschappij B.V. | 3721 |
3 |
| Cameron Systems AS | 10 |
3 |
| Cameron International Corporation | 1322 |
2 |
| Cummins Filtration IP, Inc. | 807 |
2 |
| ExxonMobil Upstream Research Company | 2456 |
2 |
| Hoover Limited | 8 |
2 |
| Koks Group B.V. | 12 |
2 |
| Weir Minerals Australia, Ltd. | 307 |
2 |
| Enercorp Engineered Solutions Inc. | 43 |
2 |
| Discovery Energy, LLC | 379 |
2 |
| General Electric Company | 17803 |
1 |
| LG Chem, Ltd. | 17632 |
1 |
| Caterpillar Inc. | 9149 |
1 |
| Panasonic Intellectual Property Management Co., Ltd. | 29620 |
1 |
| Shell Oil Company | 2155 |
1 |
| Other owners | 50 |