- All sections
- C - Chemistry; metallurgy
- C08G - Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C08G 65/331 - Polymers modified by chemical after-treatment with organic compounds containing oxygen
Patent holdings for IPC class C08G 65/331
Total number of patents in this class: 291
10-year publication summary
|
26
|
22
|
32
|
34
|
30
|
28
|
35
|
23
|
25
|
7
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Solvay Specialty Polymers Italy S.p.A. | 704 |
17 |
| Showa Denko K.K. | 2539 |
14 |
| Nektar Therapeutics | 503 |
14 |
| NOK Corporation | 2108 |
13 |
| Construction Research & Technology GmbH | 640 |
9 |
| Moresco Corporation | 151 |
9 |
| Dow Global Technologies LLC | 10147 |
8 |
| Resonac Corporation | 2233 |
8 |
| Rohm and Haas Company | 2805 |
7 |
| Niitaka Co., Ltd. | 18 |
7 |
| Agency for Science, Technology and Research | 3512 |
6 |
| Stepan Company | 567 |
6 |
| Elementis Specialties, Inc. | 129 |
5 |
| International Business Machines Corporation | 60644 |
4 |
| PPG Industries Ohio, Inc. | 3430 |
4 |
| Kaneka Corporation | 4445 |
4 |
| BASF SE | 19740 |
3 |
| Toray Industries, Inc. | 6652 |
3 |
| Mayo Foundation for Medical Education and Research | 2981 |
3 |
| BYK-Chemie GmbH | 437 |
3 |
| Other owners | 144 |