- All sections
- B - Performing operations; transporting
- B01J - Chemical or physical processes, e.g. catalysis or colloid chemistry; their relevant apparatus
- B01J 20/28 - Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes 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: 6295
10-year publication summary
|
436
|
494
|
583
|
698
|
680
|
628
|
663
|
693
|
626
|
177
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Chem, Ltd. | 17205 |
100 |
| Sumitomo Seika Chemicals Co., Ltd. | 1028 |
78 |
| Nippon Shokubai Co., Ltd. | 1487 |
71 |
| BASF SE | 19740 |
66 |
| Waters Technologies Corporation | 1654 |
66 |
| 3m Innovative Properties Company | 18406 |
65 |
| IFP Energies Nouvelles | 2717 |
62 |
| Cytiva BioProcess R&D AB | 287 |
62 |
| Toray Industries, Inc. | 6652 |
60 |
| Arkema France | 3790 |
52 |
| Johnson Matthey Public Limited Company | 1852 |
49 |
| The Regents of the University of California | 18943 |
45 |
| King Fahd University of Petroleum and Minerals | 779 |
45 |
| Kuraray Co., Ltd. | 3392 |
44 |
| Saudi Arabian Oil Company | 11322 |
44 |
| ExxonMobil Research And Engineering Company | 2830 |
41 |
| BASF Corporation | 2039 |
38 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10525 |
36 |
| Centre National de La Recherche Scientifique | 9632 |
32 |
| Corning Incorporated | 9932 |
32 |
| Other owners | 5207 |