- All sections
- B - Performing operations; transporting
- B04C - Apparatus using free vortex flow, e.g. cyclones
- B04C 5/181 - Bulkheads or central bodies in the discharge opening
Patent holdings for IPC class B04C 5/181
Total number of patents in this class: 60
10-year publication summary
|
6
|
5
|
5
|
6
|
4
|
3
|
4
|
2
|
3
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| FMC Separation Systems, BV | 29 |
5 |
| Shell Internationale Research Maatschappij B.V. | 3792 |
3 |
| Practical Analyzer Solutions Pte. Ltd. | 3 |
3 |
| BASF SE | 19740 |
2 |
| Shell Canada Limited | 139 |
2 |
| BSH Bosch und Siemens Hausgerate GmbH | 3236 |
2 |
| Cameron International Corporation | 1305 |
2 |
| Doosan Heavy Industries & Construction Co., Ltd. | 604 |
2 |
| FMC Technologies C.V. | 12 |
2 |
| JK Industries, LLC | 10 |
2 |
| Kbk Industries, LLC | 19 |
2 |
| Koganei Corporation | 209 |
2 |
| Saudi Arabian Oil Company | 11322 |
2 |
| X'pole Precision Tools Inc. | 50 |
2 |
| FLSmidth A/S | 923 |
2 |
| Koninklijke Philips N.V. | 22975 |
1 |
| Shell Oil Company | 2196 |
1 |
| Aker Process Systems AS | 15 |
1 |
| Andritz Inc. | 344 |
1 |
| Aramco Services Company | 3504 |
1 |
| Other owners | 20 |