- All sections
- C - Chemistry; metallurgy
- C08G - Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C08G 59/20 - Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups characterised by the epoxy compounds used
Patent holdings for IPC class C08G 59/20
Total number of patents in this class: 655
10-year publication summary
|
45
|
45
|
44
|
61
|
58
|
47
|
39
|
44
|
40
|
8
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| DIC Corporation | 3597 |
32 |
| Nippon Kayaku Kabushiki Kaisha | 1400 |
32 |
| Daicel Corporation | 2128 |
28 |
| Hitachi Chemical Company, Ltd. | 2455 |
25 |
| Sekisui Chemical Co., Ltd. | 3159 |
23 |
| Sumitomo Bakelite Co., Ltd. | 1416 |
21 |
| Mitsubishi Chemical Corporation | 4313 |
19 |
| Toray Industries, Inc. | 6652 |
18 |
| Adeka Corporation | 1333 |
18 |
| Mitsubishi Gas Chemical Company, Inc. | 3188 |
18 |
| FUJIFILM Corporation | 27102 |
15 |
| Nitto Denko Corporation | 7879 |
14 |
| Nippon Steel Chemical & Material Co., Ltd. | 571 |
13 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
12 |
| Shin-Etsu Chemical Co., Ltd. | 5132 |
12 |
| Kaneka Corporation | 4445 |
11 |
| Mitsui Chemicals, Inc. | 3134 |
10 |
| Ajinomoto Co., Inc. | 2337 |
10 |
| Nissan Chemical Industries, Ltd. | 1822 |
10 |
| Three Bond Co., Ltd. | 209 |
8 |
| Other owners | 306 |