- All sections
- B - Performing operationstransporting
- B01J - Chemical or physical processes, e.g. catalysis or colloid chemistrytheir relevant apparatus
- B01J 20/283 - Porous sorbents based on silica
Patent holdings for IPC class B01J 20/283
Total number of patents in this class: 240
10-year publication summary
|
12
|
16
|
17
|
26
|
20
|
18
|
11
|
22
|
26
|
12
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Waters Technologies Corporation | 1701 |
37 |
| Agilent Technologies, Inc. | 2637 |
10 |
| Separative | 13 |
9 |
| Daicel Corporation | 2375 |
8 |
| Centre National de La Recherche Scientifique | 10516 |
5 |
| Miura Co., Ltd. | 289 |
5 |
| Merck Patent GmbH | 5824 |
4 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10941 |
4 |
| Shimadzu Corporation | 6191 |
4 |
| Greenblu | 5 |
4 |
| Battelle Memorial Institute | 2492 |
3 |
| Imerys USA, Inc. | 145 |
3 |
| Phenomenex, Inc. | 57 |
3 |
| Thermo Electron Manufacturing Limited | 48 |
3 |
| University of Hull | 69 |
3 |
| Orange Photonics, Inc. | 10 |
3 |
| Western Research Institute, Inc. | 23 |
3 |
| BASF SE | 20979 |
2 |
| Purdue Research Foundation | 3664 |
2 |
| Arcadis U.S., Inc. | 33 |
2 |
| Other owners | 123 |