- All sections
- C - Chemistry; metallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 67/31 - Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group by introduction of functional groups containing oxygen only in singly bound form
Patent holdings for IPC class C07C 67/31
Total number of patents in this class: 278
10-year publication summary
|
28
|
19
|
15
|
22
|
22
|
14
|
20
|
14
|
18
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Novamont S.p.A. | 358 |
10 |
| Sumitomo Chemical Company, Limited | 8988 |
7 |
| Nippon Shokubai Co., Ltd. | 1513 |
6 |
| Takasago International Corporation | 403 |
6 |
| Honshu Chemical Industry Co., Ltd. | 156 |
5 |
| Ihara Chemical Industry Co., Ltd. | 74 |
5 |
| United Therapeutics Corporation | 290 |
5 |
| Zhejiang Jiuzhou Pharmaceutical Co., Ltd. | 67 |
5 |
| Shandong Rainbow Biotech Co., Ltd. | 10 |
5 |
| Centre National de La Recherche Scientifique | 10102 |
4 |
| Council of Scientific & Industrial Research | 1409 |
4 |
| Lygos, Inc. | 78 |
4 |
| Nederlandse Organisatie voor Toegepast-natuurwetenschappelijk Onderzoek TNO | 2378 |
4 |
| Trent University | 70 |
4 |
| Dow Global Technologies LLC | 10156 |
3 |
| Kaneka Corporation | 4498 |
3 |
| Eastman Chemical Company | 2258 |
3 |
| Max-Planck-Gesellschaft zur Forderung der Wissenschaften e.V. | 1744 |
3 |
| Mitsubishi Gas Chemical Company, Inc. | 3343 |
3 |
| Solvay SA | 1030 |
3 |
| Other owners | 186 |