- 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: 115
10-year publication summary
|
17
|
14
|
6
|
22
|
11
|
8
|
8
|
4
|
4
|
2
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| MANN+HUMMEL GmbH | 1682 |
16 |
| LG Electronics Inc. | 69257 |
12 |
| Enverid Systems, Inc. | 80 |
6 |
| Uop LLC | 4083 |
5 |
| LyteSyde, LLC | 13 |
4 |
| Shell Internationale Research Maatschappij B.V. | 3792 |
3 |
| Cameron Systems AS | 10 |
3 |
| Kohler Co. | 4165 |
2 |
| Cameron International Corporation | 1305 |
2 |
| Cummins Filtration IP, Inc. | 812 |
2 |
| ExxonMobil Upstream Research Company | 2525 |
2 |
| Hoover Limited | 11 |
2 |
| Koks Group B.V. | 12 |
2 |
| Weir Minerals Australia, Ltd. | 309 |
2 |
| General Electric Company | 18133 |
1 |
| LG Chem, Ltd. | 17205 |
1 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
1 |
| Shell Oil Company | 2196 |
1 |
| Aktiebolaget Electrolux | 758 |
1 |
| Atlas Copco Airpower, naamloze vennootschap | 915 |
1 |
| Other owners | 46 |