- All sections
- B - Performing operationstransporting
- B01J - Chemical or physical processes, e.g. catalysis or colloid chemistrytheir relevant apparatus
- B01J 27/053 - Sulfates
Patent holdings for IPC class B01J 27/053
Total number of patents in this class: 293
10-year publication summary
|
25
|
26
|
25
|
22
|
18
|
14
|
12
|
19
|
14
|
9
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Cataler Corporation | 573 |
28 |
| Chevron Phillips Chemical Company LP | 1830 |
17 |
| Mitsubishi Chemical Corporation | 4514 |
11 |
| E. I. du Pont de Nemours and Company | 4071 |
7 |
| TOYOTA JIDOSHA KABUSHIKI KAISHA (also trading as TOYOTA MOTOR CORPORATION) | 12797 |
7 |
| Johnson Matthey Public Limited Company | 1858 |
6 |
| Toyota Motor Corporation | 32231 |
5 |
| N.E. Chemcat Corporation | 188 |
5 |
| Umicore Shokubai Japan Co., Ltd. | 80 |
5 |
| ARQ Solutions, LLC | 44 |
5 |
| Kao Corporation | 4962 |
4 |
| China Petroleum & Chemical Corporation | 1908 |
4 |
| Tokyo Institute of Technology | 1374 |
4 |
| Mitsubishi Power, Ltd. | 1762 |
4 |
| LG Chem, Ltd. | 17638 |
3 |
| National Institute of Advanced Industrial Science and Technology | 3802 |
3 |
| Archer Daniels Midland Company | 1115 |
3 |
| Arkema France | 4154 |
3 |
| IFP Energies Nouvelles | 2933 |
3 |
| Lion Corporation | 745 |
3 |
| Other owners | 163 |