- 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: 379
10-year publication summary
|
34
|
34
|
43
|
32
|
31
|
39
|
32
|
39
|
26
|
22
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Waters Technologies Corporation | 1795 |
28 |
| Regeneron Pharmaceuticals, Inc. | 4698 |
12 |
| Kashiv Biosciences, LLC | 108 |
12 |
| Cytiva BioProcess R&D AB | 322 |
12 |
| Cytosorbents Corporation | 89 |
8 |
| Genzyme Corporation | 1369 |
7 |
| Spark Therapeutics, Inc. | 182 |
7 |
| Cytiva Sweden AB | 788 |
7 |
| Bio-Rad Laboratories, Inc. | 1611 |
6 |
| International Business Machines Corporation | 62621 |
5 |
| Amgen Inc. | 4425 |
5 |
| Dow Global Technologies LLC | 10930 |
5 |
| Life Technologies Corporation | 3456 |
5 |
| Hanmi Pharm. Co., Ltd. | 601 |
5 |
| IFP Energies Nouvelles | 3095 |
5 |
| Daicel Corporation | 2508 |
4 |
| Merck Millipore Ltd. | 38 |
4 |
| Kbio Holdings Limited | 28 |
4 |
| Resonac Corporation | 3516 |
4 |
| Wyatt Technology, LLC | 166 |
4 |
| Other owners | 230 |