- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 15/34 - Size-selective separation, e.g. size-exclusion chromatographyGel filtrationPermeation
Patent holdings for IPC class B01D 15/34
Total number of patents in this class: 346
10-year publication summary
|
16
|
31
|
31
|
40
|
31
|
30
|
36
|
27
|
33
|
20
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Waters Technologies Corporation | 1705 |
25 |
| Kashiv Biosciences, LLC | 92 |
11 |
| Regeneron Pharmaceuticals, Inc. | 4335 |
10 |
| Cytiva BioProcess R&D AB | 309 |
10 |
| Cytosorbents Corporation | 95 |
8 |
| Genzyme Corporation | 1279 |
7 |
| Bio-Rad Laboratories, Inc. | 1617 |
6 |
| Pierce Biotechnology, Inc. | 145 |
6 |
| Spark Therapeutics, Inc. | 168 |
6 |
| Cytiva Sweden AB | 763 |
6 |
| International Business Machines Corporation | 61471 |
5 |
| Amgen Inc. | 4105 |
5 |
| Dow Global Technologies LLC | 10413 |
5 |
| Daicel Corporation | 2376 |
4 |
| Merck Millipore Ltd. | 36 |
4 |
| Kbio Holdings Limited | 21 |
4 |
| Resonac Corporation | 2905 |
4 |
| F. Hoffmann-La Roche AG | 7947 |
3 |
| BASF SE | 20991 |
3 |
| Agilent Technologies, Inc. | 2638 |
3 |
| Other owners | 211 |