- All sections
- B - Performing operationstransporting
- B01J - Chemical or physical processes, e.g. catalysis or colloid chemistrytheir relevant apparatus
- B01J 21/12 - Silica and alumina
Patent holdings for IPC class B01J 21/12
Total number of patents in this class: 1013
10-year publication summary
|
54
|
64
|
75
|
94
|
64
|
58
|
65
|
71
|
46
|
38
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| IFP Energies Nouvelles | 2974 |
69 |
| Johnson Matthey Public Limited Company | 1779 |
49 |
| Uop LLC | 4256 |
46 |
| Chevron Phillips Chemical Company LP | 1847 |
39 |
| Chevron U.S.A. Inc. | 4014 |
31 |
| BASF Corporation | 1713 |
26 |
| China Petroleum & Chemical Corporation | 1942 |
23 |
| Saudi Arabian Oil Company | 13622 |
21 |
| Umicore AG & Co. KG | 861 |
19 |
| Dow Global Technologies LLC | 10518 |
14 |
| ENI S.p.A. | 1278 |
14 |
| Shell Internationale Research Maatschappij B.V. | 3537 |
12 |
| BASF Mobile Emissions Catalysts LLC | 412 |
12 |
| Sasol Technology (Proprietary) Limited | 219 |
11 |
| Shell USA, Inc. | 1245 |
11 |
| SABIC Global Technologies B.V. | 4396 |
10 |
| NGK Insulators, Ltd. | 5137 |
9 |
| Versalis S.P.A. | 545 |
9 |
| BASF SE | 21072 |
8 |
| Evonik Oxeno GmbH & Co. KG | 337 |
8 |
| Other owners | 572 |