- 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: 291
10-year publication summary
|
26
|
24
|
21
|
18
|
14
|
11
|
19
|
14
|
10
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Cataler Corporation | 580 |
27 |
| Chevron Phillips Chemical Company LP | 1847 |
17 |
| Mitsubishi Chemical Corporation | 4666 |
11 |
| E. I. du Pont de Nemours and Company | 3767 |
7 |
| TOYOTA JIDOSHA KABUSHIKI KAISHA (also trading as TOYOTA MOTOR CORPORATION) | 12605 |
7 |
| Johnson Matthey Public Limited Company | 1737 |
6 |
| Umicore Shokubai Japan Co., Ltd. | 80 |
6 |
| Toyota Motor Corporation | 33951 |
5 |
| N.E. Chemcat Corporation | 189 |
5 |
| ARQ Solutions, LLC | 45 |
5 |
| Kao Corporation | 5027 |
4 |
| China Petroleum & Chemical Corporation | 1997 |
4 |
| Mitsubishi Power, Ltd. | 1814 |
4 |
| LG Chem, Ltd. | 17737 |
3 |
| National Institute of Advanced Industrial Science and Technology | 3795 |
3 |
| Archer Daniels Midland Company | 1114 |
3 |
| Arkema France | 4163 |
3 |
| IFP Energies Nouvelles | 3006 |
3 |
| Lion Corporation | 741 |
3 |
| Solvay SA | 969 |
3 |
| Other owners | 162 |