- All sections
- B - Performing operationstransporting
- B01J - Chemical or physical processes, e.g. catalysis or colloid chemistrytheir relevant apparatus
- B01J 21/20 - Regeneration or reactivation
Patent holdings for IPC class B01J 21/20
Total number of patents in this class: 101
10-year publication summary
|
5
|
6
|
10
|
4
|
5
|
2
|
3
|
7
|
4
|
4
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Chevron U.S.A. Inc. | 4170 |
7 |
| Uop LLC | 4407 |
6 |
| Mitsubishi Power, Ltd. | 1836 |
6 |
| Instituto Mexicano Del Petroleo | 201 |
4 |
| Shell USA, Inc. | 1351 |
4 |
| Utah State University | 209 |
3 |
| Virent, Inc. | 146 |
3 |
| Totalenergies Onetech | 1546 |
3 |
| Mitsubishi Heavy Industries, Ltd. | 9204 |
2 |
| Evonik Degussa GmbH | 1345 |
2 |
| Eurecat S.A. | 96 |
2 |
| IFP Energies Nouvelles | 3116 |
2 |
| Indian Oil Corporation Limited | 337 |
2 |
| Johnson Matthey Public Limited Company | 1764 |
2 |
| Mexichem Amanco Holding S.A. de C.V. | 115 |
2 |
| Sartec Corporation | 35 |
2 |
| Saudi Arabian Oil Company | 14369 |
2 |
| Seoul Viosys Co., Ltd. | 1570 |
2 |
| Shanghai Huaming Hi-Tech (Group) Co., Ltd. | 4 |
2 |
| Velocys, Inc. | 52 |
2 |
| Other owners | 41 |