- All sections
- C - Chemistrymetallurgy
- C08L - Compositions of macromolecular compounds
- C08L 61/04 - Condensation polymers of aldehydes or ketones with phenols only
Patent holdings for IPC class C08L 61/04
Total number of patents in this class: 192
10-year publication summary
|
11
|
15
|
14
|
12
|
10
|
13
|
8
|
5
|
8
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Gas Chemical Company, Inc. | 3586 |
11 |
| Bridgestone Corporation | 7231 |
9 |
| Sumitomo Bakelite Co., Ltd. | 1520 |
9 |
| LG Chem, Ltd. | 17813 |
7 |
| The Yokohama Rubber Co., Ltd. | 4099 |
7 |
| Toray Industries, Inc. | 7036 |
5 |
| Kingspan Holdings (IRL) Limited | 478 |
5 |
| Hitachi Chemical Company, Ltd. | 2273 |
4 |
| Kao Corporation | 5018 |
4 |
| Ecolab USA Inc. | 5722 |
4 |
| Resonac Corporation | 3198 |
4 |
| Sumitomo Rubber Industries, Ltd. | 4712 |
3 |
| Mitsui Chemicals, Inc. | 3215 |
3 |
| JSR Corporation | 2540 |
3 |
| Adeka Corporation | 1367 |
3 |
| Asahi Kasei Construction Materials Corporation | 62 |
3 |
| Construction Research & Technology GmbH | 618 |
3 |
| Eastman Chemical Company | 2090 |
3 |
| LG Hausys, Ltd. | 816 |
3 |
| Evonik Operations GmbH | 4231 |
3 |
| Other owners | 96 |