- All sections
- C - Chemistry; metallurgy
- 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: 72
10-year publication summary
8
|
6
|
4
|
1
|
3
|
2
|
12
|
2
|
3
|
2
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Dow Corning Toray Co., Ltd. | 562 |
8 |
Dow Silicones Corporation | 1664 |
8 |
Idemitsu Kosan Co., Ltd. | 3995 |
6 |
Dow Corning Corporation | 1072 |
4 |
Alcon, Inc. | 4899 |
4 |
Wacker Chemie AG | 2091 |
4 |
Dow Toray Co., Ltd. | 494 |
4 |
The Procter & Gamble Company | 22178 |
2 |
Shin-Etsu Chemical Co., Ltd. | 5132 |
2 |
Dow Global Technologies LLC | 10147 |
2 |
Toray Fine Chemicals Co., Ltd. | 79 |
2 |
Bausch & Lomb Incorporated | 1199 |
2 |
Momentive Performance Materials Inc. | 861 |
2 |
Nippon Soda Co., Ltd. | 890 |
2 |
Toagosei Co., Ltd. | 894 |
2 |
Nanon A/S | 9 |
2 |
Nissan Chemical Corporation | 1725 |
2 |
The United States of America as represented by the Secretary of the Navy | 2734 |
1 |
Sabic Innovative Plastics IP B.V. | 683 |
1 |
Korea Institute of Science and Technology | 2022 |
1 |
Other owners | 11 |