- All sections
- C - Chemistrymetallurgy
- C08G - Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C08G 63/20 - Polyesters having been prepared in the presence of compounds having one reactive group or more than two reactive groups
Patent holdings for IPC class C08G 63/20
Total number of patents in this class: 275
10-year publication summary
|
6
|
22
|
11
|
15
|
13
|
20
|
22
|
31
|
16
|
16
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Eastman Chemical Company | 2087 |
18 |
| PPG Industries Ohio, Inc. | 3332 |
17 |
| Kingfa SCI & Tech Co. Ltd. | 704 |
16 |
| Zhuhai Kingfa Biomaterial Co., Ltd. | 33 |
14 |
| BASF SE | 21303 |
11 |
| Mitsubishi Chemical Corporation | 4724 |
7 |
| Novamont S.p.A. | 393 |
7 |
| Toyobo MC Corporation | 532 |
6 |
| The Procter & Gamble Company | 21855 |
5 |
| Clariant International Ltd. | 893 |
5 |
| Nan Ya Plastics Corporation | 500 |
5 |
| Arkema Quimica S.A.U. | 6 |
5 |
| Covestro (Netherlands) B.V. | 297 |
5 |
| Jiangsu Kingfa Sci. & Tech. Advanced Materials Co., Ltd. | 29 |
4 |
| Canon Inc. | 43817 |
3 |
| Kao Corporation | 5076 |
3 |
| DSM IP Assets B.V. | 5379 |
3 |
| Akzo Nobel Coatings International B.V. | 2038 |
3 |
| Cornell University | 3425 |
3 |
| Stepan Company | 566 |
3 |
| Other owners | 132 |