- All sections
- B - Performing operationstransporting
- B04B - Centrifuges
- B04B 1/04 - Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles with inserted separating walls
Patent holdings for IPC class B04B 1/04
Total number of patents in this class: 103
10-year publication summary
|
8
|
8
|
9
|
3
|
8
|
5
|
6
|
6
|
7
|
7
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Alfa Laval Corporate AB | 1315 |
14 |
| Qwtip LLC | 65 |
12 |
| GEA Westfalia Separator Group GmbH | 103 |
4 |
| Thought Preserve, LLC | 13 |
4 |
| Biorganics Uft B.V. | 9 |
4 |
| 650438 Alberta Ltd. | 4 |
3 |
| Evodos B.V. | 4 |
3 |
| Newcastle Innovation Limited | 87 |
3 |
| FUJIFILM Corporation | 29437 |
2 |
| Biomet Biologics, LLC | 77 |
2 |
| Dresser-Rand Company | 212 |
2 |
| GM Innovations Limited | 18 |
2 |
| Hanuman, LLC | 13 |
2 |
| Reyco Systems, Inc. | 9 |
2 |
| Specialist Process Technologies Limited | 5 |
2 |
| Tokyo ROKI Co., Ltd. | 69 |
2 |
| Weir Minerals Australia, Ltd. | 307 |
2 |
| FLSmidth A/S | 774 |
2 |
| Hanuman Medical | 3 |
2 |
| Thought Preserue, LLC | 2 |
2 |
| Other owners | 32 |