- 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: 578
10-year publication summary
|
57
|
53
|
52
|
58
|
51
|
50
|
58
|
41
|
56
|
10
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Waters Technologies Corporation | 1690 |
49 |
| Cytiva Sweden AB | 757 |
36 |
| Agilent Technologies, Inc. | 2641 |
33 |
| Cytiva BioProcess R&D AB | 302 |
26 |
| GE Healthcare Bio-Sciences AB | 547 |
19 |
| W. L. Gore & Associates, Inc. | 2668 |
14 |
| IDEX Health & Science LLC | 207 |
11 |
| Biotage AB | 91 |
9 |
| Tosoh Bioscience LLC | 40 |
9 |
| Pharmafluidics NV | 29 |
7 |
| SPF Technologies LLC | 20 |
7 |
| Bio-Rad Laboratories, Inc. | 1609 |
6 |
| Douglas T. Gjerde | 11 |
6 |
| Regeneron Pharmaceuticals, Inc. | 4223 |
6 |
| Shimadzu Corporation | 6132 |
5 |
| Sartorius Stedim Biotech GmbH | 824 |
5 |
| F. Hoffmann-La Roche AG | 7926 |
4 |
| Merck Patent GmbH | 5850 |
4 |
| Uop LLC | 4209 |
4 |
| Altria Client Services LLC | 2171 |
4 |
| Other owners | 314 |