- 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: 945
10-year publication summary
|
68
|
59
|
67
|
79
|
98
|
66
|
60
|
70
|
65
|
12
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| IFP Energies Nouvelles | 2717 |
61 |
| Johnson Matthey Public Limited Company | 1852 |
50 |
| Uop LLC | 4083 |
45 |
| Chevron Phillips Chemical Company LP | 1779 |
34 |
| BASF Corporation | 2039 |
32 |
| Chevron U.S.A. Inc. | 3774 |
30 |
| China Petroleum & Chemical Corporation | 1623 |
22 |
| Umicore AG & Co. KG | 867 |
19 |
| Saudi Arabian Oil Company | 11322 |
17 |
| ENI S.p.A. | 1241 |
15 |
| Dow Global Technologies LLC | 10147 |
12 |
| Shell Internationale Research Maatschappij B.V. | 3792 |
11 |
| Sasol Technology (Proprietary) Limited | 250 |
11 |
| Shell USA, Inc. | 1074 |
11 |
| Albemarle Corporation | 514 |
10 |
| SABIC Global Technologies B.V. | 4044 |
10 |
| BASF SE | 19740 |
9 |
| NGK Insulators, Ltd. | 4589 |
9 |
| Univation Technologies, LLC | 667 |
9 |
| Versalis S.P.A. | 511 |
9 |
| Other owners | 519 |