- 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: 429
10-year publication summary
|
24
|
37
|
23
|
47
|
42
|
41
|
33
|
40
|
63
|
32
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| FUJIFILM Corporation | 30516 |
51 |
| Resonac Corporation | 3546 |
22 |
| LG Chem, Ltd. | 17929 |
18 |
| Shin-Etsu Chemical Co., Ltd. | 6109 |
16 |
| Asahi Kasei Kabushiki Kaisha | 2834 |
16 |
| Mitsubishi Gas Chemical Company, Inc. | 3624 |
16 |
| Nippon Kayaku Kabushiki Kaisha | 1454 |
13 |
| Nissan Chemical Corporation | 2229 |
9 |
| Lintec Corporation | 2014 |
8 |
| HD MicroSystems, Ltd. | 68 |
8 |
| Hitachi Chemical Company, Ltd. | 2241 |
7 |
| Nissan Chemical Industries, Ltd. | 1643 |
7 |
| Industrial Technology Research Institute | 5205 |
6 |
| Designer Molecules, Inc. | 47 |
6 |
| Eternal Materials Co., Ltd. | 98 |
6 |
| Soochow University | 1781 |
6 |
| Sumitomo Bakelite Co., Ltd. | 1534 |
6 |
| Merck Patent GmbH | 5729 |
5 |
| The United States of America as represented by the Secretary of the Navy | 2860 |
4 |
| Kaneka Corporation | 4713 |
4 |
| Other owners | 195 |