- All sections
- B - Performing operationstransporting
- B01J - Chemical or physical processes, e.g. catalysis or colloid chemistrytheir relevant apparatus
- B01J 21/16 - Clays or other mineral silicates
Patent holdings for IPC class B01J 21/16
Total number of patents in this class: 498
10-year publication summary
|
42
|
17
|
39
|
32
|
33
|
37
|
37
|
35
|
40
|
5
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Saudi Arabian Oil Company | 12858 |
25 |
| BASF Corporation | 1714 |
23 |
| China Petroleum & Chemical Corporation | 1869 |
12 |
| Total Research & Technology Feluy | 446 |
11 |
| NGK Insulators, Ltd. | 4920 |
10 |
| Celanese International Corporation | 907 |
10 |
| Research Institute of Petroleum Processing, Sinopec | 371 |
10 |
| Totalenergies Onetech | 1256 |
10 |
| Indian Oil Corporation Limited | 333 |
9 |
| King Fahd University of Petroleum and Minerals | 1145 |
9 |
| Chevron Phillips Chemical Company LP | 1833 |
8 |
| Chevron U.S.A. Inc. | 3929 |
7 |
| Johnson Matthey Public Limited Company | 1862 |
7 |
| ExxonMobil Chemical Patents Inc. | 4028 |
6 |
| Johnson Matthey Catalysts (Germany) GmbH | 71 |
6 |
| BASF SE | 20777 |
5 |
| Murata Manufacturing Co., Ltd. | 24342 |
5 |
| IFP Energies Nouvelles | 2893 |
5 |
| SK Innovation Co., Ltd. | 1298 |
5 |
| Sud-chemie AG | 164 |
5 |
| Other owners | 310 |