- All sections
- C - Chemistrymetallurgy
- 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: 214
10-year publication summary
|
39
|
20
|
17
|
20
|
14
|
10
|
10
|
8
|
11
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Agc, Inc. | 4470 |
9 |
| Daikin Industries, Ltd. | 9838 |
8 |
| 3m Innovative Properties Company | 17957 |
6 |
| Zhejiang Ausun Pharmaceutical Co., Ltd. | 35 |
6 |
| BASF SE | 20432 |
5 |
| Asahi Glass Company, Limited | 2882 |
4 |
| Kappa Bioscience AS | 45 |
4 |
| National University Corporation Nagoya University | 893 |
4 |
| Organofuel Sweden AB | 20 |
4 |
| Dow Global Technologies LLC | 10156 |
3 |
| The Board of Trustees of the University of Illinois | 2666 |
3 |
| Kanagawa University | 71 |
3 |
| Tokuyama Corporation | 1342 |
3 |
| Unigen, Inc. | 116 |
3 |
| University of Delaware | 359 |
3 |
| Centre National de La Recherche Scientifique | 10102 |
2 |
| Evonik Industries AG | 224 |
2 |
| Wisconsin Alumni Research Foundation | 3820 |
2 |
| The Trustees of the University of Pennsylvania | 4260 |
2 |
| Wako Pure Chemical Industries, Ltd. | 143 |
2 |
| Other owners | 136 |