- All sections
- B - Performing operations; transporting
- B04B - Centrifuges
- B04B 9/12 - Suspending rotary bowls
Patent holdings for IPC class B04B 9/12
Total number of patents in this class: 161
10-year publication summary
|
13
|
13
|
11
|
14
|
9
|
13
|
14
|
23
|
14
|
2
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Alfa Laval Corporate AB | 1265 |
34 |
| GEA Mechanical Equipment GmbH | 253 |
28 |
| GEA Westfalia Separator Group GmbH | 60 |
12 |
| ANDREAS Hettich GmbH & Co. KG | 120 |
10 |
| GEA Westfalia Separator GmbH | 23 |
6 |
| Alfdex AB | 43 |
5 |
| 650438 Alberta Ltd. | 4 |
3 |
| Alfa Wassermann, Inc. | 39 |
3 |
| BMA Braunschweigische Maschinenbauanstalt AG | 36 |
3 |
| Fenwal, Inc. | 626 |
3 |
| Flottweg SE | 88 |
3 |
| MANN+HUMMEL GmbH | 1682 |
3 |
| Tomoe Engineering Co., Ltd. | 48 |
3 |
| Life Technologies Corporation | 3068 |
2 |
| Fresenius Medical Care Deutschland GmbH | 2100 |
2 |
| Hanning Elektro-Werke GmbH & Co. KG | 52 |
2 |
| Kubota Manufacturing Corporation | 16 |
2 |
| The Western States Machine Company | 17 |
2 |
| Pratt & Whitney Canada Corp. | 4215 |
1 |
| 3nine AB | 22 |
1 |
| Other owners | 33 |