- All sections
- C - Chemistrymetallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 67/26 - Preparation of carboxylic acid esters by reacting carboxylic acids or derivatives thereof with a carbon-to-oxygen ether bond, e.g. acetal, tetrahydrofuran with an oxirane ring
Patent holdings for IPC class C07C 67/26
Total number of patents in this class: 111
10-year publication summary
|
18
|
7
|
4
|
10
|
6
|
1
|
6
|
4
|
6
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Stepan Company | 582 |
10 |
| Mitsubishi Rayon Co., Ltd. | 908 |
5 |
| Mitsubishi Chemical Corporation | 4519 |
4 |
| Nippon Shokubai Co., Ltd. | 1507 |
4 |
| Clariant International Ltd. | 937 |
3 |
| Cognis IP Management GmbH | 633 |
3 |
| Kawasaki Kasei Chemicals Ltd. | 31 |
3 |
| Rohm GmbH | 260 |
3 |
| Wanhua Chemical Group Co., Ltd. | 353 |
3 |
| BASF SE | 20915 |
2 |
| AstraZeneca AB | 2900 |
2 |
| Evonik Röhm GmbH | 439 |
2 |
| Rohm and Haas Company | 2877 |
2 |
| Dow Global Technologies LLC | 10349 |
2 |
| Chevron U.S.A. Inc. | 3966 |
2 |
| Idemitsu Kosan Co., Ltd. | 4224 |
2 |
| Daicel Corporation | 2351 |
2 |
| Kolb Distribution Ltd. | 6 |
2 |
| Mitsubishi Gas Chemical Company, Inc. | 3466 |
2 |
| Nissan Chemical Industries, Ltd. | 1716 |
2 |
| Other owners | 51 |