- All sections
- B - Performing operationstransporting
- B01J - Chemical or physical processes, e.g. catalysis or colloid chemistrytheir relevant apparatus
- B01J 37/30 - Ion-exchange
Patent holdings for IPC class B01J 37/30
Total number of patents in this class: 570
10-year publication summary
|
26
|
36
|
49
|
54
|
62
|
52
|
44
|
26
|
38
|
12
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Uop LLC | 4216 |
33 |
| Johnson Matthey Public Limited Company | 1842 |
27 |
| BASF Mobile Emissions Catalysts LLC | 396 |
23 |
| BASF SE | 20803 |
16 |
| BASF Corporation | 1715 |
16 |
| China Petroleum & Chemical Corporation | 1874 |
16 |
| Saudi Arabian Oil Company | 12891 |
16 |
| Chevron U.S.A. Inc. | 3939 |
15 |
| Research Institute of Petroleum Processing, Sinopec | 371 |
13 |
| Hyundai Motor Company | 21748 |
12 |
| Chevron Phillips Chemical Company LP | 1835 |
9 |
| IFP Energies Nouvelles | 2915 |
9 |
| Ibiden Co., Ltd. | 1734 |
8 |
| BASF Catalysts LLC | 163 |
8 |
| Dalian Institute of Chemical Physics, Chinese Academy of Sciences | 671 |
8 |
| Saudi Basic Industries Corporation | 573 |
7 |
| SK Innovation Co., Ltd. | 1303 |
7 |
| Umicore AG & Co. KG | 857 |
7 |
| Shell Internationale Research Maatschappij B.V. | 3551 |
6 |
| Shell Oil Company | 2141 |
6 |
| Other owners | 308 |