- All sections
- B - Performing operationstransporting
- B01J - Chemical or physical processes, e.g. catalysis or colloid chemistrytheir relevant apparatus
- B01J 31/20 - Carbonyls
Patent holdings for IPC class B01J 31/20
Total number of patents in this class: 183
10-year publication summary
|
9
|
11
|
25
|
10
|
17
|
8
|
14
|
18
|
16
|
4
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Eastman Chemical Company | 2081 |
12 |
| Celanese International Corporation | 911 |
9 |
| Novomer, Inc. | 141 |
9 |
| BASF SE | 21303 |
8 |
| King Faisal University | 931 |
7 |
| Novomer LLC | 75 |
6 |
| LG Chem, Ltd. | 17921 |
5 |
| Centre National de La Recherche Scientifique | 11016 |
4 |
| ExxonMobil Chemical Patents Inc. | 3786 |
4 |
| Dow Technology Investments LLC | 279 |
4 |
| Firmenich SA | 1759 |
4 |
| Elkem Silicones France SAS | 175 |
4 |
| Noramco, LLC | 28 |
4 |
| Nitto Denko Corporation | 8526 |
3 |
| National Institute of Advanced Industrial Science and Technology | 3790 |
3 |
| Cornell University | 3421 |
3 |
| Hitachi Chemical Company, Ltd. | 2245 |
2 |
| Alma Mater Studiorum - Universita di Bologna | 436 |
2 |
| China Petroleum & Chemical Corporation | 2147 |
2 |
| Deuteria Beverages, LLC | 12 |
2 |
| Other owners | 86 |