- All sections
- B - Performing operations; transporting
- B04B - Centrifuges
- B04B 11/04 - Periodical feeding or discharging; Control arrangements therefor
Patent holdings for IPC class B04B 11/04
Total number of patents in this class: 303
10-year publication summary
|
32
|
22
|
21
|
21
|
29
|
34
|
23
|
26
|
17
|
5
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| GEA Mechanical Equipment GmbH | 253 |
24 |
| Alfa Laval Corporate AB | 1265 |
18 |
| Beckman Coulter, Inc. | 1183 |
13 |
| DSM IP Assets B.V. | 5856 |
12 |
| bioMerieux, Inc. | 391 |
8 |
| Pneumatic Scale Corporation | 38 |
8 |
| Terumo Kabushiki Kaisha | 5216 |
7 |
| BioFire Defense, LLC | 77 |
7 |
| Tetra Laval Holdings & Finance S.A. | 2007 |
7 |
| Yantai Ausbio Laboratories Co., Ltd. | 24 |
7 |
| Life Technologies Corporation | 3068 |
6 |
| GEA Westfalia Separator Group GmbH | 60 |
6 |
| Roche Diagnostics Operations, Inc. | 1375 |
5 |
| BMA Braunschweigische Maschinenbauanstalt AG | 36 |
5 |
| MANN+HUMMEL GmbH | 1682 |
5 |
| Tomoe Engineering Co., Ltd. | 48 |
5 |
| Empirical Innovations, Inc. | 31 |
5 |
| ANDREAS Hettich GmbH & Co. KG | 120 |
4 |
| TriPath Imaging, Inc. | 82 |
4 |
| Wartsila Finland Oy | 740 |
4 |
| Other owners | 143 |