- All sections
- B - Performing operationstransporting
- B01J - Chemical or physical processes, e.g. catalysis or colloid chemistrytheir relevant apparatus
- B01J 31/40 - Regeneration or reactivation
Patent holdings for IPC class B01J 31/40
Total number of patents in this class: 188
10-year publication summary
|
12
|
20
|
15
|
9
|
7
|
11
|
10
|
7
|
7
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Uop LLC | 4254 |
19 |
| Dow Technology Investments LLC | 275 |
18 |
| Chevron U.S.A. Inc. | 4013 |
16 |
| LG Chem, Ltd. | 17702 |
5 |
| Shell Internationale Research Maatschappij B.V. | 3513 |
5 |
| Evonik Degussa GmbH | 1452 |
4 |
| Florida State University Research Foundation, Inc. | 784 |
4 |
| INVISTA North America, LLC | 150 |
4 |
| INV Nylon Chemicals Americas, LLC | 192 |
4 |
| Evonik Oxeno GmbH & Co. KG | 346 |
4 |
| INVISTA North America S.a.r.l. | 176 |
3 |
| Novomer, Inc. | 212 |
3 |
| Shell USA, Inc. | 1262 |
3 |
| BASF SE | 21109 |
2 |
| Nitto Denko Corporation | 8370 |
2 |
| Shell Oil Company | 2119 |
2 |
| ExxonMobil Chemical Patents Inc. | 3925 |
2 |
| Mitsubishi Chemical Corporation | 4625 |
2 |
| Celanese International Corporation | 915 |
2 |
| China University of Petroleum (Beijing) | 292 |
2 |
| Other owners | 82 |