- All sections
- B - Performing operations; transporting
- B01J - Chemical or physical processes, e.g. catalysis or colloid chemistry; their 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: 491
10-year publication summary
44
|
42
|
17
|
39
|
32
|
33
|
37
|
35
|
34
|
17
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
BASF Corporation | 2039 |
25 |
Saudi Arabian Oil Company | 11322 |
23 |
China Petroleum & Chemical Corporation | 1623 |
13 |
Albemarle Netherlands B.V. | 93 |
12 |
Research Institute of Petroleum Processing, Sinopec | 387 |
11 |
Total Research & Technology Feluy | 461 |
11 |
NGK Insulators, Ltd. | 4589 |
10 |
Celanese International Corporation | 879 |
10 |
Indian Oil Corporation Limited | 329 |
9 |
Chevron U.S.A. Inc. | 3774 |
7 |
Johnson Matthey Public Limited Company | 1852 |
7 |
Chevron Phillips Chemical Company LP | 1779 |
6 |
IFP Energies Nouvelles | 2717 |
6 |
Johnson Matthey Catalysts (Germany) GmbH | 71 |
6 |
SABIC Global Technologies B.V. | 4044 |
6 |
Murata Manufacturing Co., Ltd. | 22355 |
5 |
ExxonMobil Chemical Patents Inc. | 4286 |
5 |
Sud-chemie AG | 202 |
5 |
Umicore AG & Co. KG | 867 |
5 |
Totalenergies Onetech | 536 |
5 |
Other owners | 304 |