- All sections
- B - Performing operations; transporting
- B01J - Chemical or physical processes, e.g. catalysis or colloid chemistry; their relevant apparatus
- B01J 21/12 - Silica and alumina
Patent holdings for IPC class B01J 21/12
Total number of patents in this class: 975
10-year publication summary
|
59
|
67
|
79
|
98
|
66
|
62
|
71
|
71
|
46
|
5
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| IFP Energies Nouvelles | 2829 |
63 |
| Johnson Matthey Public Limited Company | 1852 |
52 |
| Uop LLC | 4188 |
45 |
| Chevron Phillips Chemical Company LP | 1817 |
36 |
| Chevron U.S.A. Inc. | 3856 |
32 |
| BASF Corporation | 1823 |
25 |
| China Petroleum & Chemical Corporation | 1783 |
23 |
| Saudi Arabian Oil Company | 12446 |
19 |
| Umicore AG & Co. KG | 860 |
19 |
| ENI S.p.A. | 1250 |
14 |
| Dow Global Technologies LLC | 10156 |
13 |
| Shell Internationale Research Maatschappij B.V. | 3722 |
11 |
| Sasol Technology (Proprietary) Limited | 234 |
11 |
| Shell USA, Inc. | 1137 |
11 |
| BASF Mobile Emissions Catalysts LLC | 257 |
11 |
| Albemarle Corporation | 511 |
10 |
| BASF SE | 20432 |
9 |
| NGK Insulators, Ltd. | 4792 |
9 |
| SABIC Global Technologies B.V. | 4203 |
9 |
| Univation Technologies, LLC | 663 |
9 |
| Other owners | 544 |