- 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
|
16
|
17
|
26
|
20
|
18
|
11
|
22
|
26
|
15
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Waters Technologies Corporation | 1767 |
38 |
| Agilent Technologies, Inc. | 2651 |
10 |
| Separative | 12 |
9 |
| Daicel Corporation | 2441 |
8 |
| Centre National de La Recherche Scientifique | 10820 |
5 |
| Miura Co., Ltd. | 292 |
5 |
| Merck Patent GmbH | 5732 |
4 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10972 |
4 |
| Shimadzu Corporation | 6283 |
4 |
| Phenomenex, Inc. | 56 |
4 |
| Greenblu | 5 |
4 |
| Battelle Memorial Institute | 2539 |
3 |
| Imerys USA, Inc. | 141 |
3 |
| Thermo Electron Manufacturing Limited | 47 |
3 |
| University of Hull | 68 |
3 |
| Orange Photonics, Inc. | 10 |
3 |
| Western Research Institute, Inc. | 23 |
3 |
| BASF SE | 21151 |
2 |
| Purdue Research Foundation | 3802 |
2 |
| Arcadis U.S., Inc. | 35 |
2 |
| Other owners | 121 |