- All sections
- B - Performing operationstransporting
- B01J - Chemical or physical processes, e.g. catalysis or colloid chemistrytheir relevant apparatus
- B01J 20/04 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium
Patent holdings for IPC class B01J 20/04
Total number of patents in this class: 1469
10-year publication summary
|
88
|
110
|
144
|
129
|
121
|
99
|
120
|
135
|
130
|
79
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Bio-Rad Laboratories, Inc. | 1614 |
20 |
| S.A. Lhoist Recherche et Developpement | 172 |
19 |
| Uop LLC | 4244 |
18 |
| Omya International AG | 774 |
15 |
| Samsung Electronics Co., Ltd. | 146092 |
14 |
| Solvay SA | 993 |
13 |
| Hoya Corporation | 2745 |
12 |
| SAES Getters S.p.A. | 318 |
11 |
| Mississippi Lime Company | 41 |
10 |
| Fresenius Medical Care Holdings, Inc. | 1419 |
9 |
| LG Chem, Ltd. | 17632 |
8 |
| Massachusetts Institute of Technology | 10057 |
8 |
| IFP Energies Nouvelles | 2933 |
8 |
| Johnson Matthey Public Limited Company | 1850 |
8 |
| Korea Electric Power Corporation | 468 |
8 |
| Mitsubishi Gas Chemical Company, Inc. | 3465 |
8 |
| Nippon Shokubai Co., Ltd. | 1507 |
8 |
| NOx II, Ltd. | 48 |
8 |
| Purafil, Inc. | 46 |
8 |
| Birchtech Corp. | 32 |
8 |
| Other owners | 1248 |