- 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: 1031
10-year publication summary
|
64
|
75
|
94
|
64
|
58
|
65
|
74
|
47
|
42
|
10
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| IFP Energies Nouvelles | 3012 |
71 |
| Johnson Matthey Public Limited Company | 1733 |
50 |
| Uop LLC | 4285 |
46 |
| Chevron Phillips Chemical Company LP | 1852 |
39 |
| Chevron U.S.A. Inc. | 4073 |
34 |
| BASF Corporation | 1693 |
26 |
| China Petroleum & Chemical Corporation | 2014 |
24 |
| Saudi Arabian Oil Company | 13904 |
21 |
| Umicore AG & Co. KG | 861 |
19 |
| Dow Global Technologies LLC | 10740 |
16 |
| ENI S.p.A. | 1302 |
14 |
| BASF Mobile Emissions Catalysts LLC | 429 |
14 |
| Shell Internationale Research Maatschappij B.V. | 3497 |
12 |
| Shell USA, Inc. | 1281 |
11 |
| SABIC Global Technologies B.V. | 4468 |
10 |
| Sasol Technology (Proprietary) Limited | 209 |
10 |
| NGK Insulators, Ltd. | 5212 |
9 |
| Versalis S.P.A. | 542 |
9 |
| BASF SE | 21131 |
8 |
| Evonik Oxeno GmbH & Co. KG | 359 |
8 |
| Other owners | 580 |