- All sections
- B - Performing operations; transporting
- B04C - Apparatus using free vortex flow, e.g. cyclones
- B04C 11/00 - Accessories, e.g. safety or control devices, not otherwise provided for
Patent holdings for IPC class B04C 11/00
Total number of patents in this class: 195
10-year publication summary
|
14
|
20
|
21
|
21
|
17
|
14
|
10
|
11
|
4
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Vulco, S.A. | 59 |
13 |
| Cidra Corporate Services, Inc. | 207 |
11 |
| National Oilwell Varco, L.P. | 1625 |
7 |
| FLSmidth A/S | 859 |
7 |
| Omachron Intellectual Property Inc. | 915 |
5 |
| AKW Apparate + Verfahren GmbH | 8 |
4 |
| Cidra Corporate Services, LLC | 89 |
4 |
| Weir Minerals Australia, Ltd. | 307 |
4 |
| V-stax, LLC | 8 |
4 |
| Dow Global Technologies LLC | 10143 |
3 |
| Andritz Oy | 280 |
3 |
| Ecomin S.r.l. | 7 |
3 |
| Festool GmbH | 351 |
3 |
| Statoil Petroleum AS | 541 |
3 |
| Weir Canada, Inc. | 21 |
3 |
| Weir Group IP Limited | 26 |
3 |
| Ford Motor Company | 2731 |
2 |
| Xerox Corporation | 7076 |
2 |
| Hewlett-Packard Development Company, L.P. | 27476 |
2 |
| Aker Subsea AS | 130 |
2 |
| Other owners | 107 |