- All sections
- B - Performing operations; transporting
- B01J - Chemical or physical processes, e.g. catalysis or colloid chemistry; their 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: 210
10-year publication summary
25
|
14
|
16
|
18
|
26
|
20
|
16
|
10
|
20
|
8
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Waters Technologies Corporation | 1654 |
34 |
Agilent Technologies, Inc. | 2744 |
8 |
Separative | 10 |
8 |
Daicel Corporation | 2128 |
6 |
Merck Patent GmbH | 5909 |
5 |
Centre National de La Recherche Scientifique | 9632 |
4 |
Shimadzu Corporation | 5791 |
4 |
Miura Co., Ltd. | 287 |
4 |
Greenblu | 5 |
4 |
Commissariat à l'énergie atomique et aux energies alternatives | 10525 |
3 |
Battelle Memorial Institute | 2356 |
3 |
Imerys USA, Inc. | 135 |
3 |
Thermo Electron Manufacturing Limited | 35 |
3 |
University of Hull | 73 |
3 |
Western Research Institute, Inc. | 22 |
3 |
Purdue Research Foundation | 3277 |
2 |
Arcadis U.S., Inc. | 36 |
2 |
Azyp, LLC | 4 |
2 |
Dalian Institute of Chemical Physics, Chinese Academy of Sciences | 614 |
2 |
Dionex Corporation | 320 |
2 |
Other owners | 105 |