- All sections
- C - Chemistrymetallurgy
- C08G - Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C08G 73/12 - Unsaturated polyimide precursors
Patent holdings for IPC class C08G 73/12
Total number of patents in this class: 370
10-year publication summary
|
14
|
24
|
37
|
23
|
47
|
42
|
41
|
32
|
38
|
33
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| FUJIFILM Corporation | 29367 |
27 |
| LG Chem, Ltd. | 17632 |
18 |
| Resonac Corporation | 2800 |
17 |
| Mitsubishi Gas Chemical Company, Inc. | 3465 |
15 |
| Shin-Etsu Chemical Co., Ltd. | 5658 |
13 |
| Nippon Kayaku Kabushiki Kaisha | 1432 |
11 |
| Asahi Kasei Kabushiki Kaisha | 2673 |
9 |
| Nissan Chemical Corporation | 2010 |
9 |
| Hitachi Chemical Company, Ltd. | 2350 |
8 |
| Lintec Corporation | 1962 |
8 |
| Nissan Chemical Industries, Ltd. | 1717 |
7 |
| Industrial Technology Research Institute | 5086 |
6 |
| Designer Molecules, Inc. | 50 |
6 |
| Eternal Materials Co., Ltd. | 98 |
6 |
| Sumitomo Bakelite Co., Ltd. | 1495 |
6 |
| Soochow University | 1736 |
5 |
| HD MicroSystems, Ltd. | 53 |
5 |
| Merck Patent GmbH | 5831 |
4 |
| The United States of America as represented by the Secretary of the Navy | 2745 |
4 |
| Kaneka Corporation | 4522 |
4 |
| Other owners | 182 |