- 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: 176
10-year publication summary
|
13
|
9
|
11
|
25
|
10
|
17
|
8
|
15
|
18
|
15
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Novomer, Inc. | 212 |
15 |
| Eastman Chemical Company | 2218 |
12 |
| Celanese International Corporation | 909 |
9 |
| BASF SE | 20915 |
8 |
| King Faisal University | 917 |
7 |
| LG Chem, Ltd. | 17639 |
5 |
| ExxonMobil Chemical Patents Inc. | 3976 |
4 |
| Dow Technology Investments LLC | 270 |
4 |
| Firmenich SA | 1684 |
4 |
| Noramco, LLC | 27 |
4 |
| Centre National de La Recherche Scientifique | 10442 |
3 |
| National Institute of Advanced Industrial Science and Technology | 3791 |
3 |
| Elkem Silicones France SAS | 164 |
3 |
| Hitachi Chemical Company, Ltd. | 2346 |
2 |
| Nitto Denko Corporation | 8246 |
2 |
| Alma Mater Studiorum - Universita di Bologna | 401 |
2 |
| Cornell University | 3307 |
2 |
| Deuteria Beverages, LLC | 12 |
2 |
| Kyushu University, National University Corporation | 1657 |
2 |
| Lyondell Chemical Technology, L.P. | 265 |
2 |
| Other owners | 81 |