- All sections
- C - Chemistrymetallurgy
- C08G - Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C08G 77/34 - Purification
Patent holdings for IPC class C08G 77/34
Total number of patents in this class: 80
10-year publication summary
|
4
|
1
|
3
|
3
|
12
|
2
|
4
|
3
|
5
|
5
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Dow Silicones Corporation | 2109 |
9 |
| Alcon, Inc. | 5848 |
7 |
| Dow Corning Toray Co., Ltd. | 456 |
7 |
| Idemitsu Kosan Co., Ltd. | 4234 |
6 |
| Wacker Chemie AG | 2110 |
4 |
| Dow Toray Co., Ltd. | 620 |
4 |
| Evonik Operations GmbH | 4336 |
4 |
| Dow Corning Corporation | 879 |
3 |
| The Procter & Gamble Company | 21861 |
2 |
| Shin-Etsu Chemical Co., Ltd. | 6083 |
2 |
| The United States of America as represented by the Secretary of the Navy | 2856 |
2 |
| Dow Global Technologies LLC | 10930 |
2 |
| Toray Fine Chemicals Co., Ltd. | 83 |
2 |
| Momentive Performance Materials Inc. | 901 |
2 |
| Nippon Soda Co., Ltd. | 885 |
2 |
| Toagosei Co., Ltd. | 1026 |
2 |
| Nissan Chemical Corporation | 2218 |
2 |
| Especialidades Químicas Globales de México, S.A.P.I. de C.V. | 2 |
2 |
| Sabic Innovative Plastics IP B.V. | 595 |
1 |
| Korea Institute of Science and Technology | 2248 |
1 |
| Other owners | 14 |