- All sections
- C - Chemistrymetallurgy
- C08G - Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C08G 63/21 - Polyesters having been prepared in the presence of compounds having one reactive group or more than two reactive groups in the presence of unsaturated monocarboxylic acids or unsaturated monohydric alcohols or reactive derivatives thereof
Patent holdings for IPC class C08G 63/21
Total number of patents in this class: 49
10-year publication summary
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0
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1
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3
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3
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2
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3
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5
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5
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5
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2
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| DIC Corporation | 3808 |
4 |
| Novamont S.p.A. | 355 |
3 |
| Nouryon Chemicals International B.V. | 608 |
3 |
| The Sherwin-Williams Company | 538 |
2 |
| Massachusetts Institute of Technology | 10080 |
2 |
| DSM IP Assets B.V. | 5589 |
2 |
| PPG Industries Ohio, Inc. | 3445 |
2 |
| Allnex Belgium S.A. | 155 |
2 |
| Canon Inc. | 40216 |
1 |
| Kao Corporation | 4975 |
1 |
| The General Hospital Corporation | 4751 |
1 |
| Adeka Corporation | 1366 |
1 |
| Arkema France | 4159 |
1 |
| BASF Coatings GmbH | 1201 |
1 |
| Eastman Chemical Company | 2218 |
1 |
| Elementis Specialties, Inc. | 151 |
1 |
| Emery Oleochemicals GmbH | 112 |
1 |
| Engineered Polymer Solutions, Inc. (a Delaware corporation) | 145 |
1 |
| Nan Ya Plastics Corporation | 434 |
1 |
| Nexam Chemical AB | 55 |
1 |
| Other owners | 17 |