- 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: 7522
10-year publication summary
|
547
|
664
|
653
|
606
|
637
|
676
|
620
|
637
|
680
|
68
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Chem, Ltd. | 17726 |
127 |
| Sumitomo Seika Chemicals Co., Ltd. | 1051 |
92 |
| Nippon Shokubai Co., Ltd. | 1512 |
85 |
| Waters Technologies Corporation | 1758 |
81 |
| BASF SE | 21126 |
75 |
| King Fahd University of Petroleum and Minerals | 1423 |
70 |
| Cytiva BioProcess R&D AB | 313 |
70 |
| 3m Innovative Properties Company | 17609 |
62 |
| Toray Industries, Inc. | 7016 |
62 |
| Saudi Arabian Oil Company | 13791 |
58 |
| IFP Energies Nouvelles | 3013 |
56 |
| Arkema France | 4166 |
54 |
| Corning Incorporated | 10350 |
52 |
| Kuraray Co., Ltd. | 3560 |
51 |
| The Regents of the University of California | 20339 |
50 |
| ExxonMobil Technology and Engineering Company | 1209 |
44 |
| Centre National de La Recherche Scientifique | 10784 |
43 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10981 |
43 |
| NGK Insulators, Ltd. | 5185 |
41 |
| Calgon Carbon Corporation | 248 |
41 |
| Other owners | 6265 |