- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 15/22 - Selective adsorption, e.g. chromatography characterised by constructional or operational features relating to the construction of the column
Patent holdings for IPC class B01D 15/22
Total number of patents in this class: 630
10-year publication summary
|
53
|
53
|
58
|
51
|
52
|
58
|
42
|
57
|
43
|
23
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Waters Technologies Corporation | 1794 |
53 |
| Agilent Technologies, Inc. | 2634 |
36 |
| Cytiva Sweden AB | 789 |
36 |
| Cytiva BioProcess R&D AB | 322 |
25 |
| GE Healthcare Bio-Sciences AB | 508 |
17 |
| IDEX Health & Science LLC | 202 |
11 |
| W. L. Gore & Associates, Inc. | 2720 |
10 |
| Biotage AB | 96 |
10 |
| Tosoh Bioscience LLC | 43 |
9 |
| SPF Technologies LLC | 23 |
8 |
| Bio-Rad Laboratories, Inc. | 1610 |
6 |
| Douglas T. Gjerde | 11 |
6 |
| Pharmafluidics NV | 29 |
6 |
| Regeneron Pharmaceuticals, Inc. | 4701 |
6 |
| Merck Patent GmbH | 5728 |
5 |
| Shimadzu Corporation | 6340 |
5 |
| Altria Client Services LLC | 2435 |
5 |
| Sartorius Stedim Biotech GmbH | 875 |
5 |
| Mozarc Medical US LLC | 386 |
5 |
| F. Hoffmann-La Roche AG | 7837 |
4 |
| Other owners | 362 |