- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 15/38 - Selective adsorption, e.g. chromatography characterised by the separation mechanism involving specific interaction not covered by one or more of groups , e.g. affinity, ligand exchange or chiral chromatography
Patent holdings for IPC class B01D 15/38
Total number of patents in this class: 1563
10-year publication summary
|
121
|
116
|
150
|
139
|
114
|
146
|
125
|
142
|
134
|
67
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Cytiva BioProcess R&D AB | 322 |
92 |
| Waters Technologies Corporation | 1794 |
51 |
| Bio-Rad Laboratories, Inc. | 1610 |
35 |
| Merck Patent GmbH | 5728 |
29 |
| Genzyme Corporation | 1368 |
23 |
| Bristol-myers Squibb Company | 4742 |
21 |
| Regeneron Pharmaceuticals, Inc. | 4701 |
20 |
| EMD Millipore Corporation | 631 |
18 |
| Genentech, Inc. | 4104 |
17 |
| Kaneka Corporation | 4703 |
17 |
| GE Healthcare Bio-Sciences AB | 508 |
17 |
| Donaldson Company, Inc. | 1600 |
15 |
| Amgen Inc. | 4427 |
14 |
| W. L. Gore & Associates, Inc. | 2720 |
14 |
| Hoffmann-La Roche Inc. | 3793 |
11 |
| The Trustees of the University of Pennsylvania | 4415 |
11 |
| Miltenyi Biotec B.V. & Co. KG | 387 |
11 |
| Cytiva Sweden AB | 789 |
11 |
| Repligen Corporation | 297 |
10 |
| The Regents of the University of California | 20745 |
9 |
| Other owners | 1117 |