- All sections
- C - Chemistrymetallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 41/22 - Preparation of ethers by reactions not forming ether-oxygen bonds by introduction of halogenPreparation 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: 172
10-year publication summary
|
9
|
15
|
9
|
14
|
7
|
12
|
10
|
10
|
3
|
4
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Daikin Industries, Ltd. | 10499 |
13 |
| Central Glass Company, Limited | 1293 |
10 |
| Agc, Inc. | 5524 |
10 |
| Albemarle Corporation | 484 |
9 |
| National University Corporation Hokkaido University | 1366 |
5 |
| Life Technologies Corporation | 3458 |
4 |
| The Regents of the University of Michigan | 4985 |
4 |
| Solvay Specialty Polymers Italy S.p.A. | 656 |
4 |
| The Trustees of Princeton University | 1263 |
4 |
| The University of North Carolina at Chapel Hill | 2094 |
4 |
| Zhejiang Ausun Pharmaceutical Co., Ltd. | 45 |
4 |
| Shin-Etsu Chemical Co., Ltd. | 6096 |
3 |
| Technion Research & Development Foundation Ltd. | 1260 |
3 |
| The University of Tokyo | 4361 |
3 |
| Fujian Yongjing Technology Co., Ltd | 42 |
3 |
| 3m Innovative Properties Company | 17478 |
2 |
| Colgate-Palmolive Company | 5751 |
2 |
| Toray Industries, Inc. | 7113 |
2 |
| President and Fellows of Harvard College | 6094 |
2 |
| Baxter International Inc. | 1891 |
2 |
| Other owners | 79 |