- All sections
- C - Chemistrymetallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 25/18 - Polycyclic aromatic halogenated hydrocarbons
Patent holdings for IPC class C07C 25/18
Total number of patents in this class: 217
10-year publication summary
|
16
|
13
|
10
|
10
|
10
|
9
|
8
|
15
|
21
|
17
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| FUJIFILM Corporation | 29817 |
16 |
| Shin-Etsu Chemical Co., Ltd. | 5784 |
16 |
| Sumitomo Chemical Company, Limited | 9109 |
11 |
| Merck Patent GmbH | 5759 |
8 |
| Tokyo Ohka Kogyo Co., Ltd. | 1547 |
8 |
| JSR Corporation | 2542 |
7 |
| Albemarle Corporation | 482 |
5 |
| BASF SE | 21087 |
4 |
| JNC Corporation | 1508 |
4 |
| P&H Tech Co., Ltd | 47 |
4 |
| Apple Inc. | 56283 |
3 |
| Chisso Petrochemical Corporation | 60 |
3 |
| DIC Corporation | 3848 |
3 |
| JNC Petrochemical Corporation | 327 |
3 |
| Max-Planck-Gesellschaft zur Forderung der Wissenschaften e.V. | 1805 |
3 |
| National University Corporation Hokkaido University | 1352 |
3 |
| Tosoh Corporation | 1338 |
3 |
| DuPont Electronic Materials International, LLC | 428 |
3 |
| General Electric Company | 13840 |
2 |
| Samsung Display Co., Ltd. | 36265 |
2 |
| Other owners | 106 |