- All sections
- C - Chemistrymetallurgy
- 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: 713
10-year publication summary
|
44
|
61
|
58
|
47
|
40
|
48
|
43
|
37
|
34
|
36
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nippon Kayaku Kabushiki Kaisha | 1454 |
34 |
| Daicel Corporation | 2508 |
32 |
| Sekisui Chemical Co., Ltd. | 3606 |
31 |
| DIC Corporation | 3961 |
30 |
| Hitachi Chemical Company, Ltd. | 2245 |
23 |
| Toray Industries, Inc. | 7096 |
22 |
| Mitsubishi Chemical Corporation | 4721 |
21 |
| Sumitomo Bakelite Co., Ltd. | 1533 |
21 |
| Mitsubishi Gas Chemical Company, Inc. | 3619 |
20 |
| Adeka Corporation | 1376 |
19 |
| Shin-Etsu Chemical Co., Ltd. | 6083 |
17 |
| FUJIFILM Corporation | 30512 |
15 |
| Panasonic Intellectual Property Management Co., Ltd. | 33911 |
14 |
| Nippon Steel Chemical & Material Co., Ltd. | 728 |
14 |
| Nitto Denko Corporation | 8526 |
13 |
| Kaneka Corporation | 4693 |
13 |
| Namics Corporation | 482 |
13 |
| Resonac Corporation | 3516 |
13 |
| Mitsui Chemicals, Inc. | 3242 |
12 |
| Ajinomoto Co., Inc. | 2279 |
11 |
| Other owners | 325 |