- All sections
- B - Performing operations; transporting
- B01J - Chemical or physical processes, e.g. catalysis or colloid chemistry; their relevant apparatus
- B01J 37/30 - Ion-exchange
Patent holdings for IPC class B01J 37/30
Total number of patents in this class: 533
10-year publication summary
25
|
26
|
36
|
49
|
54
|
61
|
52
|
44
|
26
|
12
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
BASF Corporation | 2039 |
33 |
Uop LLC | 4083 |
32 |
Johnson Matthey Public Limited Company | 1852 |
24 |
BASF SE | 19740 |
22 |
China Petroleum & Chemical Corporation | 1623 |
17 |
Chevron U.S.A. Inc. | 3774 |
14 |
Research Institute of Petroleum Processing, Sinopec | 387 |
13 |
Hyundai Motor Company | 19021 |
11 |
Saudi Arabian Oil Company | 11322 |
11 |
IFP Energies Nouvelles | 2717 |
10 |
Chevron Phillips Chemical Company LP | 1779 |
9 |
Ibiden Co., Ltd. | 1724 |
8 |
Dalian Institute of Chemical Physics, Chinese Academy of Sciences | 614 |
8 |
Saudi Basic Industries Corporation | 625 |
7 |
Umicore AG & Co. KG | 867 |
7 |
Shell Internationale Research Maatschappij B.V. | 3792 |
6 |
Shell Oil Company | 2196 |
6 |
Exelus, Inc. | 27 |
6 |
PetroChina Company Limited | 462 |
6 |
ExxonMobil Research And Engineering Company | 2830 |
5 |
Other owners | 278 |