- All sections
- B - Performing operations; transporting
- B01J - Chemical or physical processes, e.g. catalysis or colloid chemistry; their relevant apparatus
- B01J 31/40 - Regeneration or reactivation
Patent holdings for IPC class B01J 31/40
Total number of patents in this class: 193
10-year publication summary
|
19
|
21
|
13
|
20
|
16
|
10
|
7
|
11
|
11
|
3
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Uop LLC | 4083 |
19 |
| Chevron U.S.A. Inc. | 3774 |
18 |
| Dow Technology Investments LLC | 270 |
16 |
| LG Chem, Ltd. | 17205 |
5 |
| Shell Internationale Research Maatschappij B.V. | 3792 |
5 |
| Evonik Degussa GmbH | 1574 |
4 |
| Florida State University Research Foundation, Inc. | 685 |
4 |
| INVISTA North America, LLC | 170 |
4 |
| INV Nylon Chemicals Americas, LLC | 182 |
4 |
| Evonik Oxeno GmbH & Co. KG | 278 |
4 |
| Eastman Chemical Company | 2239 |
3 |
| INVISTA North America S.a.r.l. | 182 |
3 |
| Novomer, Inc. | 198 |
3 |
| Shell USA, Inc. | 1074 |
3 |
| BASF SE | 19740 |
2 |
| Nitto Denko Corporation | 7879 |
2 |
| Shell Oil Company | 2196 |
2 |
| ExxonMobil Chemical Patents Inc. | 4286 |
2 |
| Celanese International Corporation | 879 |
2 |
| Chevron Phillips Chemical Company LP | 1779 |
2 |
| Other owners | 86 |