- All sections
- B - Performing operationstransporting
- 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: 114
10-year publication summary
|
6
|
22
|
11
|
8
|
8
|
5
|
4
|
7
|
7
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| MANN+HUMMEL GmbH | 1808 |
17 |
| LG Electronics Inc. | 75818 |
8 |
| Uop LLC | 4393 |
5 |
| Enverid Systems, Inc. | 80 |
5 |
| V-stax, LLC | 31 |
4 |
| Cameron Systems AS | 10 |
3 |
| Shell Internationale Research Maatschappij B.V. | 3398 |
2 |
| ExxonMobil Upstream Research Company | 2302 |
2 |
| Hoover Limited | 6 |
2 |
| Koks Group B.V. | 11 |
2 |
| Weir Minerals Australia, Ltd. | 310 |
2 |
| LG Energy Solution, Ltd. | 19066 |
2 |
| Enercorp Engineered Solutions Inc. | 54 |
2 |
| Root Applied Sciences Inc. | 8 |
2 |
| Discovery Energy, LLC | 391 |
2 |
| Atmus Filtration IP Inc. | 274 |
2 |
| General Electric Company | 13910 |
1 |
| LG Chem, Ltd. | 17929 |
1 |
| Caterpillar Inc. | 10281 |
1 |
| Panasonic Intellectual Property Management Co., Ltd. | 34035 |
1 |
| Other owners | 48 |