- All sections
- C - Chemistrymetallurgy
- 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: 177
10-year publication summary
|
11
|
15
|
16
|
9
|
7
|
12
|
5
|
11
|
8
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| DIC Corporation | 3897 |
21 |
| Mitsubishi Gas Chemical Company, Inc. | 3577 |
19 |
| UPM-Kymmene Corporation | 971 |
14 |
| JSR Corporation | 2550 |
10 |
| Sumitomo Bakelite Co., Ltd. | 1517 |
10 |
| Shin-Etsu Chemical Co., Ltd. | 5911 |
6 |
| Nissan Chemical Corporation | 2146 |
6 |
| BASF SE | 21147 |
3 |
| Centre National de La Recherche Scientifique | 10856 |
3 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10975 |
3 |
| Idemitsu Kosan Co., Ltd. | 4224 |
3 |
| Construction Research & Technology GmbH | 621 |
3 |
| Compagnie Generale des Etablissements Michelin | 4868 |
3 |
| 3m Innovative Properties Company | 17546 |
2 |
| Hitachi Chemical Company, Ltd. | 2283 |
2 |
| Sumitomo Chemical Company, Limited | 9048 |
2 |
| Energ2 Technologies, Inc. | 25 |
2 |
| Hexion Inc. | 230 |
2 |
| Kukdo Chemical Co., Ltd. | 83 |
2 |
| Nissan Chemical Industries, Ltd. | 1669 |
2 |
| Other owners | 59 |