- All sections
- C - Chemistry; metallurgy
- C08G - Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C08G 8/20 - Condensation polymers of aldehydes or ketones with phenols only of aldehydes of formaldehyde, e.g. of formaldehyde formed in situ with polyhydric phenols
Patent holdings for IPC class C08G 8/20
Total number of patents in this class: 158
10-year publication summary
|
18
|
23
|
11
|
15
|
17
|
9
|
8
|
14
|
5
|
3
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| DIC Corporation | 3597 |
20 |
| Mitsubishi Gas Chemical Company, Inc. | 3188 |
19 |
| UPM-Kymmene Corporation | 868 |
14 |
| JSR Corporation | 2476 |
11 |
| Sumitomo Bakelite Co., Ltd. | 1416 |
6 |
| Shin-Etsu Chemical Co., Ltd. | 5132 |
5 |
| Energ2 Technologies, Inc. | 28 |
4 |
| Nissan Chemical Corporation | 1725 |
4 |
| Centre National de La Recherche Scientifique | 9632 |
3 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10525 |
3 |
| Idemitsu Kosan Co., Ltd. | 3995 |
3 |
| Georgia-Pacific Chemicals LLC | 204 |
3 |
| Construction Research & Technology GmbH | 640 |
3 |
| Compagnie Generale des Etablissements Michelin | 4450 |
3 |
| 3m Innovative Properties Company | 18406 |
2 |
| BASF SE | 19740 |
2 |
| Hitachi Chemical Company, Ltd. | 2455 |
2 |
| Sumitomo Chemical Company, Limited | 8808 |
2 |
| Hexion Inc. | 207 |
2 |
| Kukdo Chemical Co., Ltd. | 37 |
2 |
| Other owners | 45 |