- All sections
- C - Chemistry; metallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 41/22 - Preparation of ethers by reactions not forming ether-oxygen bonds by substitution of halogen atoms by other halogen atoms
Patent holdings for IPC class C07C 41/22
Total number of patents in this class: 176
10-year publication summary
|
12
|
13
|
9
|
15
|
9
|
14
|
6
|
12
|
10
|
3
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Daikin Industries, Ltd. | 9495 |
13 |
| Central Glass Company, Limited | 1244 |
10 |
| Albemarle Corporation | 514 |
8 |
| Agc, Inc. | 4029 |
8 |
| National University Corporation Hokkaido University | 1323 |
5 |
| Life Technologies Corporation | 3068 |
4 |
| Solvay Specialty Polymers Italy S.p.A. | 704 |
4 |
| The Trustees of Princeton University | 1129 |
4 |
| The University of North Carolina at Chapel Hill | 1928 |
4 |
| Zhejiang Ausun Pharmaceutical Co., Ltd. | 27 |
4 |
| Shin-Etsu Chemical Co., Ltd. | 5132 |
3 |
| Dow Global Technologies LLC | 10147 |
3 |
| The Regents of the University of Michigan | 4409 |
3 |
| Nippoh Chemicals Co., Ltd. | 25 |
3 |
| Solvay SA | 1181 |
3 |
| Technion Research & Development Foundation Ltd. | 1167 |
3 |
| Fujian Yongjing Technology Co., Ltd | 43 |
3 |
| 3m Innovative Properties Company | 18406 |
2 |
| Colgate-Palmolive Company | 5325 |
2 |
| Toray Industries, Inc. | 6652 |
2 |
| Other owners | 85 |