- All sections
- B - Performing operations; transporting
- 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: 543
10-year publication summary
|
32
|
57
|
53
|
52
|
58
|
51
|
51
|
57
|
40
|
16
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Waters Technologies Corporation | 1654 |
41 |
| Cytiva Sweden AB | 741 |
35 |
| Agilent Technologies, Inc. | 2744 |
25 |
| Cytiva BioProcess R&D AB | 287 |
25 |
| GE Healthcare Bio-Sciences AB | 570 |
19 |
| W. L. Gore & Associates, Inc. | 2600 |
14 |
| IDEX Health & Science LLC | 205 |
10 |
| Biotage AB | 88 |
9 |
| Tosoh Bioscience LLC | 38 |
9 |
| Pharmafluidics NV | 35 |
8 |
| SPF Technologies LLC | 19 |
8 |
| Shimadzu Corporation | 5791 |
6 |
| Bio-Rad Laboratories, Inc. | 1592 |
6 |
| Douglas T. Gjerde | 11 |
6 |
| Repligen Corporation | 258 |
5 |
| Sartorius Stedim Biotech GmbH | 774 |
5 |
| F. Hoffmann-La Roche AG | 7958 |
4 |
| 3m Innovative Properties Company | 18406 |
4 |
| Merck Patent GmbH | 5909 |
4 |
| Uop LLC | 4083 |
4 |
| Other owners | 296 |