- All sections
- C - Chemistrymetallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 67/28 - Preparation of carboxylic acid esters by modifying the hydroxylic moiety of the ester, such modification not being an introduction of an ester group
Patent holdings for IPC class C07C 67/28
Total number of patents in this class: 57
10-year publication summary
|
7
|
4
|
5
|
4
|
1
|
4
|
2
|
0
|
2
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| FUJIFILM Corporation | 28805 |
2 |
| Asahi Glass Company, Limited | 2882 |
2 |
| Auterra, Inc. | 44 |
2 |
| Genfit | 264 |
2 |
| Guangzhou Insighter Biotechnology Co., Ltd. | 51 |
2 |
| Mitsubishi Gas Chemical Company, Inc. | 3343 |
2 |
| Solvias AG | 43 |
2 |
| Sun Chemical B.V. | 361 |
2 |
| Unither Pharmaceuticals | 33 |
2 |
| Shanghai Xin Hao Biological Technology Company | 4 |
2 |
| The Regents of the University of California | 19517 |
1 |
| Centre National de La Recherche Scientifique | 10102 |
1 |
| California Institute of Technology | 3936 |
1 |
| Daikin Industries, Ltd. | 9838 |
1 |
| Mitsubishi Chemical Corporation | 4447 |
1 |
| China Petroleum & Chemical Corporation | 1783 |
1 |
| Cytec Surface Specialties S.A. | 48 |
1 |
| Dipharma Francis S.r.l. | 48 |
1 |
| Divi's Laboratories, Ltd. | 27 |
1 |
| Fudan University | 644 |
1 |
| Other owners | 27 |