- 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: 578
10-year publication summary
|
25
|
35
|
49
|
54
|
62
|
52
|
43
|
26
|
38
|
24
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Uop LLC | 4259 |
34 |
| Johnson Matthey Public Limited Company | 1771 |
28 |
| BASF Mobile Emissions Catalysts LLC | 415 |
23 |
| BASF Corporation | 1708 |
17 |
| China Petroleum & Chemical Corporation | 1950 |
17 |
| Saudi Arabian Oil Company | 13656 |
17 |
| BASF SE | 21087 |
15 |
| Chevron U.S.A. Inc. | 4018 |
15 |
| Research Institute of Petroleum Processing, Sinopec | 369 |
13 |
| Hyundai Motor Company | 22813 |
12 |
| Chevron Phillips Chemical Company LP | 1851 |
9 |
| Ibiden Co., Ltd. | 1712 |
8 |
| BASF Catalysts LLC | 134 |
8 |
| Dalian Institute of Chemical Physics, Chinese Academy of Sciences | 678 |
8 |
| Saudi Basic Industries Corporation | 545 |
7 |
| IFP Energies Nouvelles | 2980 |
7 |
| SK Innovation Co., Ltd. | 1382 |
7 |
| Umicore AG & Co. KG | 862 |
7 |
| Shell Internationale Research Maatschappij B.V. | 3545 |
6 |
| Shell Oil Company | 2133 |
6 |
| Other owners | 314 |