- 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: 7589
10-year publication summary
|
547
|
664
|
653
|
606
|
637
|
677
|
621
|
637
|
681
|
122
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Chem, Ltd. | 17759 |
127 |
| Sumitomo Seika Chemicals Co., Ltd. | 1061 |
93 |
| Nippon Shokubai Co., Ltd. | 1518 |
85 |
| Waters Technologies Corporation | 1767 |
82 |
| BASF SE | 21151 |
75 |
| King Fahd University of Petroleum and Minerals | 1447 |
72 |
| Cytiva BioProcess R&D AB | 315 |
70 |
| 3m Innovative Properties Company | 17600 |
62 |
| Toray Industries, Inc. | 7023 |
62 |
| Saudi Arabian Oil Company | 13886 |
60 |
| IFP Energies Nouvelles | 3007 |
56 |
| Arkema France | 4168 |
53 |
| Corning Incorporated | 10402 |
52 |
| Kuraray Co., Ltd. | 3557 |
51 |
| The Regents of the University of California | 20427 |
50 |
| NGK Insulators, Ltd. | 5211 |
45 |
| ExxonMobil Technology and Engineering Company | 1243 |
45 |
| Centre National de La Recherche Scientifique | 10820 |
44 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10972 |
43 |
| W. L. Gore & Associates, Inc. | 2713 |
41 |
| Other owners | 6321 |