- 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: 220
10-year publication summary
|
20
|
17
|
20
|
14
|
11
|
10
|
9
|
11
|
8
|
7
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Agc, Inc. | 5524 |
9 |
| 3m Innovative Properties Company | 17478 |
6 |
| Daikin Industries, Ltd. | 10499 |
6 |
| Zhejiang Ausun Pharmaceutical Co., Ltd. | 45 |
6 |
| BASF SE | 21303 |
5 |
| Asahi Glass Company, Limited | 2622 |
4 |
| Kappa Bioscience AS | 42 |
4 |
| National University Corporation Nagoya University | 786 |
4 |
| Organofuel Sweden AB | 19 |
4 |
| Dow Global Technologies LLC | 10944 |
3 |
| The Board of Trustees of the University of Illinois | 2751 |
3 |
| Kanagawa University | 72 |
3 |
| Mitsubishi Gas Chemical Company, Inc. | 3622 |
3 |
| Tokuyama Corporation | 1477 |
3 |
| Unigen, Inc. | 103 |
3 |
| University of Delaware | 369 |
3 |
| Centre National de La Recherche Scientifique | 11023 |
2 |
| Evonik Industries AG | 223 |
2 |
| Wisconsin Alumni Research Foundation | 3898 |
2 |
| The Trustees of the University of Pennsylvania | 4415 |
2 |
| Other owners | 143 |