- All sections
- B - Performing operationstransporting
- B01J - Chemical or physical processes, e.g. catalysis or colloid chemistrytheir relevant apparatus
- B01J 20/28 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof characterised by their form or physical properties
Patent holdings for IPC class B01J 20/28
Total number of patents in this class: 7205
10-year publication summary
|
475
|
547
|
664
|
653
|
606
|
637
|
676
|
620
|
634
|
481
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Chem, Ltd. | 17643 |
118 |
| Sumitomo Seika Chemicals Co., Ltd. | 1044 |
90 |
| Nippon Shokubai Co., Ltd. | 1504 |
83 |
| Waters Technologies Corporation | 1701 |
80 |
| BASF SE | 20961 |
73 |
| Cytiva BioProcess R&D AB | 308 |
68 |
| 3m Innovative Properties Company | 17812 |
61 |
| Toray Industries, Inc. | 6974 |
61 |
| King Fahd University of Petroleum and Minerals | 1259 |
61 |
| Arkema France | 4162 |
57 |
| IFP Energies Nouvelles | 2948 |
56 |
| Saudi Arabian Oil Company | 13316 |
54 |
| Johnson Matthey Public Limited Company | 1866 |
51 |
| The Regents of the University of California | 20035 |
50 |
| Kuraray Co., Ltd. | 3510 |
50 |
| Corning Incorporated | 10294 |
48 |
| ExxonMobil Technology and Engineering Company | 1098 |
43 |
| Centre National de La Recherche Scientifique | 10498 |
41 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10936 |
41 |
| W. L. Gore & Associates, Inc. | 2712 |
41 |
| Other owners | 5978 |