- All sections
- C - Chemistrymetallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 41/20 - Preparation of ethers by reactions not forming ether-oxygen bonds by hydrogenation of carbon-to-carbon double or triple bonds
Patent holdings for IPC class C07C 41/20
Total number of patents in this class: 59
10-year publication summary
|
6
|
8
|
4
|
4
|
5
|
2
|
6
|
1
|
5
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kao Corporation | 4935 |
4 |
| Zhejiang Ausun Pharmaceutical Co., Ltd. | 35 |
4 |
| BASF SE | 20548 |
3 |
| Shin-Etsu Chemical Co., Ltd. | 5486 |
3 |
| BP p.l.c. | 503 |
3 |
| Industrial Technology Research Institute | 4960 |
2 |
| Dow Global Technologies LLC | 10206 |
2 |
| AGC Seimi Chemical Co., Ltd. | 70 |
2 |
| Wako Pure Chemical Industries, Ltd. | 142 |
2 |
| Council of Scientific & Industrial Research | 1417 |
2 |
| Shiono Chemical Co., Ltd. | 3 |
2 |
| Sichuan Haisco Pharmaceutical Co., Ltd. | 153 |
2 |
| The University of Chicago | 1364 |
2 |
| University of Pittsburgh - Of the Commonwealth System of Higher Education | 3065 |
2 |
| Nevada Research & Innovation Corporation | 46 |
2 |
| Triad National Security, LLC | 595 |
2 |
| 3m Innovative Properties Company | 18002 |
1 |
| AstraZeneca AB | 2966 |
1 |
| The Board of Trustees of the Leland Stanford Junior University | 6278 |
1 |
| DSM IP Assets B.V. | 5746 |
1 |
| Other owners | 16 |