- All sections
- C - Chemistry; metallurgy
- C08G - Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C08G 75/23 - Polyethersulfones
Patent holdings for IPC class C08G 75/23
Total number of patents in this class: 444
10-year publication summary
45
|
30
|
43
|
30
|
48
|
31
|
19
|
35
|
29
|
10
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Solvay Specialty Polymers USA, LLC | 521 |
86 |
BASF SE | 19740 |
76 |
Sumitomo Chemical Company, Limited | 8808 |
29 |
General Electric Company | 18133 |
11 |
Solvay Advanced Polymers, L.L.C. | 104 |
10 |
Toray Industries, Inc. | 6652 |
9 |
LG Chem, Ltd. | 17205 |
7 |
Kingfa SCI & Tech Co. Ltd. | 509 |
7 |
Roquette Freres | 1002 |
7 |
SHPP Global Technologies B.V. | 1045 |
7 |
Centre National de La Recherche Scientifique | 9632 |
6 |
Solvay Specialty Polymers Italy S.p.A. | 704 |
5 |
Evonik Operations GmbH | 3879 |
5 |
Cytec Technology Corp. | 328 |
4 |
SABIC Global Technologies B.V. | 4044 |
4 |
Virginia Tech Intellectual Properties, Inc. | 772 |
4 |
Seoul National University R&db Foundation | 2976 |
4 |
Cheil Industries Inc. | 944 |
3 |
Sabic Innovative Plastics IP B.V. | 683 |
3 |
Arizona Board of Regents on behalf of Arizona State University | 2226 |
3 |
Other owners | 154 |