- 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: 178
10-year publication summary
|
9
|
11
|
23
|
10
|
16
|
8
|
15
|
18
|
16
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Novomer, Inc. | 213 |
15 |
| Eastman Chemical Company | 2098 |
12 |
| Celanese International Corporation | 909 |
9 |
| BASF SE | 21151 |
8 |
| King Faisal University | 921 |
7 |
| LG Chem, Ltd. | 17759 |
5 |
| ExxonMobil Chemical Patents Inc. | 3885 |
4 |
| Dow Technology Investments LLC | 277 |
4 |
| Firmenich SA | 1723 |
4 |
| Noramco, LLC | 27 |
4 |
| Centre National de La Recherche Scientifique | 10820 |
3 |
| Nitto Denko Corporation | 8420 |
3 |
| National Institute of Advanced Industrial Science and Technology | 3794 |
3 |
| Cornell University | 3386 |
3 |
| Elkem Silicones France SAS | 168 |
3 |
| Hitachi Chemical Company, Ltd. | 2291 |
2 |
| Alma Mater Studiorum - Universita di Bologna | 422 |
2 |
| Deuteria Beverages, LLC | 12 |
2 |
| Kyushu University, National University Corporation | 1686 |
2 |
| Lyondell Chemical Technology, L.P. | 252 |
2 |
| Other owners | 81 |