- All sections
- C - Chemistry; metallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 41/18 - Preparation of ethers by reactions not forming ether-oxygen bonds
Patent holdings for IPC class C07C 41/18
Total number of patents in this class: 202
10-year publication summary
|
24
|
39
|
20
|
17
|
20
|
14
|
10
|
10
|
8
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Agc, Inc. | 4029 |
9 |
| Daikin Industries, Ltd. | 9495 |
8 |
| 3m Innovative Properties Company | 18406 |
6 |
| Zhejiang Ausun Pharmaceutical Co., Ltd. | 27 |
6 |
| BASF SE | 19740 |
5 |
| Asahi Glass Company, Limited | 2985 |
4 |
| Kappa Bioscience AS | 42 |
4 |
| National University Corporation Nagoya University | 921 |
4 |
| Organofuel Sweden AB | 20 |
4 |
| Tokuyama Corporation | 1248 |
3 |
| Unigen, Inc. | 118 |
3 |
| University of Delaware | 353 |
3 |
| Evonik Industries AG | 225 |
2 |
| Wisconsin Alumni Research Foundation | 3774 |
2 |
| The Trustees of the University of Pennsylvania | 4122 |
2 |
| Wako Pure Chemical Industries, Ltd. | 153 |
2 |
| Beyondspring Pharmaceuticals, Inc. | 76 |
2 |
| Board of Trustees of Michigan State University | 1141 |
2 |
| The Board of Trustees of the University of Alabama | 327 |
2 |
| Council of Scientific & Industrial Research | 1397 |
2 |
| Other owners | 127 |