- 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: 183
10-year publication summary
|
16
|
11
|
16
|
17
|
12
|
11
|
16
|
8
|
4
|
5
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Gas Chemical Company, Inc. | 3392 |
11 |
| Bridgestone Corporation | 7199 |
9 |
| Sumitomo Bakelite Co., Ltd. | 1480 |
8 |
| The Yokohama Rubber Co., Ltd. | 4003 |
7 |
| LG Chem, Ltd. | 17464 |
6 |
| Toray Industries, Inc. | 6840 |
5 |
| Kingspan Holdings (IRL) Limited | 427 |
5 |
| Hitachi Chemical Company, Ltd. | 2370 |
4 |
| Kao Corporation | 4912 |
4 |
| Ecolab USA Inc. | 5414 |
4 |
| Resonac Corporation | 2589 |
4 |
| Sumitomo Rubber Industries, Ltd. | 4449 |
3 |
| Mitsui Chemicals, Inc. | 3188 |
3 |
| JSR Corporation | 2501 |
3 |
| Adeka Corporation | 1358 |
3 |
| Asahi Kasei Construction Materials Corporation | 59 |
3 |
| Construction Research & Technology GmbH | 651 |
3 |
| Eastman Chemical Company | 2261 |
3 |
| LG Hausys, Ltd. | 826 |
3 |
| Honeywell International Inc. | 13611 |
2 |
| Other owners | 90 |