- All sections
- B - Performing operationstransporting
- B04B - Centrifuges
- B04B 9/12 - Suspending rotary bowls
Patent holdings for IPC class B04B 9/12
Total number of patents in this class: 176
10-year publication summary
|
11
|
14
|
9
|
13
|
14
|
25
|
14
|
11
|
11
|
8
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Alfa Laval Corporate AB | 1336 |
38 |
| GEA Mechanical Equipment GmbH | 243 |
28 |
| GEA Westfalia Separator Group GmbH | 146 |
22 |
| ANDREAS Hettich GmbH & Co. KG | 116 |
11 |
| Alfdex AB | 65 |
6 |
| GEA Westfalia Separator GmbH | 20 |
4 |
| 650438 Alberta Ltd. | 4 |
3 |
| Alfa Wassermann, Inc. | 34 |
3 |
| Fenwal, Inc. | 701 |
3 |
| Fiberlite Centrifuge, LLC | 57 |
3 |
| Flottweg SE | 92 |
3 |
| MANN+HUMMEL GmbH | 1808 |
3 |
| Sartorius Stedim Biotech GmbH | 875 |
3 |
| Tomoe Engineering Co., Ltd. | 42 |
3 |
| Life Technologies Corporation | 3454 |
2 |
| Fresenius Medical Care Deutschland GmbH | 2234 |
2 |
| Kubota Manufacturing Corporation | 15 |
2 |
| The Western States Machine Company | 17 |
2 |
| Stamex Technology Co. Ltd. | 3 |
2 |
| BMA Braunschweigische Maschinenbauanstalt GmbH | 17 |
2 |
| Other owners | 31 |