- All sections
- B - Performing operations; transporting
- B01J - Chemical or physical processes, e.g. catalysis or colloid chemistry; their relevant apparatus
- B01J 27/053 - Sulfates
Patent holdings for IPC class B01J 27/053
Total number of patents in this class: 278
10-year publication summary
29
|
25
|
26
|
25
|
22
|
18
|
14
|
12
|
19
|
5
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Cataler Corporation | 533 |
26 |
Chevron Phillips Chemical Company LP | 1779 |
14 |
Mitsubishi Chemical Corporation | 4313 |
11 |
E. I. du Pont de Nemours and Company | 4345 |
7 |
TOYOTA JIDOSHA KABUSHIKI KAISHA (also trading as TOYOTA MOTOR CORPORATION) | 13301 |
6 |
N.E. Chemcat Corporation | 193 |
5 |
Umicore Shokubai Japan Co., Ltd. | 78 |
5 |
ARQ Solutions, LLC | 43 |
5 |
Toyota Motor Corporation | 28582 |
4 |
Kao Corporation | 4843 |
4 |
China Petroleum & Chemical Corporation | 1623 |
4 |
Johnson Matthey Public Limited Company | 1852 |
4 |
Tokyo Institute of Technology | 1367 |
4 |
Mitsubishi Power, Ltd. | 1680 |
4 |
LG Chem, Ltd. | 17205 |
3 |
ExxonMobil Chemical Patents Inc. | 4286 |
3 |
National Institute of Advanced Industrial Science and Technology | 3677 |
3 |
Archer Daniels Midland Company | 1164 |
3 |
Arkema France | 3790 |
3 |
IFP Energies Nouvelles | 2717 |
3 |
Other owners | 157 |