- 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: 7859
10-year publication summary
|
583
|
698
|
680
|
630
|
668
|
701
|
650
|
688
|
721
|
375
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Chem, Ltd. | 17921 |
134 |
| Sumitomo Seika Chemicals Co., Ltd. | 1043 |
94 |
| Nippon Shokubai Co., Ltd. | 1538 |
86 |
| Waters Technologies Corporation | 1794 |
86 |
| BASF SE | 21303 |
77 |
| King Fahd University of Petroleum and Minerals | 1572 |
75 |
| Cytiva BioProcess R&D AB | 322 |
71 |
| 3m Innovative Properties Company | 17478 |
65 |
| Saudi Arabian Oil Company | 14235 |
64 |
| Corning Incorporated | 10504 |
63 |
| Toray Industries, Inc. | 7113 |
63 |
| IFP Energies Nouvelles | 3098 |
58 |
| Arkema France | 4242 |
57 |
| Kuraray Co., Ltd. | 3589 |
53 |
| The Regents of the University of California | 20745 |
49 |
| NGK Insulators, Ltd. | 5236 |
48 |
| Centre National de La Recherche Scientifique | 11023 |
46 |
| ExxonMobil Technology and Engineering Company | 1356 |
46 |
| Commissariat à l'énergie atomique et aux energies alternatives | 11123 |
44 |
| W. L. Gore & Associates, Inc. | 2720 |
43 |
| Other owners | 6537 |