- All sections
- C - Chemistry; metallurgy
- 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: 320
10-year publication summary
8
|
14
|
24
|
37
|
23
|
45
|
41
|
40
|
30
|
12
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Mitsubishi Gas Chemical Company, Inc. | 3188 |
20 |
FUJIFILM Corporation | 27102 |
18 |
LG Chem, Ltd. | 17205 |
16 |
Shin-Etsu Chemical Co., Ltd. | 5132 |
12 |
Nippon Kayaku Kabushiki Kaisha | 1400 |
12 |
Resonac Corporation | 2233 |
11 |
Hitachi Chemical Company, Ltd. | 2455 |
8 |
Eternal Materials Co., Ltd. | 101 |
7 |
Lintec Corporation | 1915 |
7 |
Nissan Chemical Industries, Ltd. | 1822 |
7 |
Nissan Chemical Corporation | 1725 |
7 |
Industrial Technology Research Institute | 4898 |
6 |
Asahi Kasei Kabushiki Kaisha | 2429 |
6 |
Designer Molecules, Inc. | 54 |
5 |
Soochow University | 1605 |
5 |
Merck Patent GmbH | 5909 |
4 |
The United States of America as represented by the Secretary of the Navy | 2734 |
4 |
Kaneka Corporation | 4445 |
4 |
Sumitomo Bakelite Co., Ltd. | 1416 |
4 |
Evonik Operations GmbH | 3879 |
4 |
Other owners | 153 |