- 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: 212
10-year publication summary
|
16
|
13
|
10
|
10
|
10
|
9
|
8
|
15
|
21
|
8
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Shin-Etsu Chemical Co., Ltd. | 5615 |
16 |
| FUJIFILM Corporation | 29273 |
14 |
| Sumitomo Chemical Company, Limited | 9027 |
11 |
| Merck Patent GmbH | 5861 |
7 |
| Tokyo Ohka Kogyo Co., Ltd. | 1537 |
7 |
| JNC Corporation | 1551 |
6 |
| JSR Corporation | 2516 |
5 |
| Albemarle Corporation | 496 |
5 |
| JNC Petrochemical Corporation | 401 |
5 |
| BASF SE | 20874 |
4 |
| Apple Inc. | 54577 |
3 |
| Chisso Petrochemical Corporation | 61 |
3 |
| DIC Corporation | 3770 |
3 |
| Max-Planck-Gesellschaft zur Forderung der Wissenschaften e.V. | 1774 |
3 |
| National University Corporation Hokkaido University | 1340 |
3 |
| Tosoh Corporation | 1278 |
3 |
| P&H Tech Co., Ltd | 44 |
3 |
| DuPont Electronic Materials International, LLC | 427 |
3 |
| General Electric Company | 13838 |
2 |
| Samsung Display Co., Ltd. | 34349 |
2 |
| Other owners | 104 |