- All sections
- C - Chemistry; metallurgy
- C08G - Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C08G 75/20 - Polysulfones
Patent holdings for IPC class C08G 75/20
Total number of patents in this class: 170
10-year publication summary
18
|
11
|
23
|
12
|
20
|
11
|
11
|
7
|
5
|
2
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Sumitomo Chemical Company, Limited | 8808 |
18 |
Solvay Specialty Polymers USA, LLC | 521 |
15 |
BASF SE | 19740 |
11 |
LG Chem, Ltd. | 17205 |
9 |
University of Florida Research Foundation, Inc. | 3883 |
4 |
General Electric Company | 18133 |
3 |
FUJIFILM Corporation | 27102 |
3 |
Sabic Innovative Plastics IP B.V. | 683 |
3 |
Max-Planck-Gesellschaft zur Forderung der Wissenschaften e.V. | 1657 |
3 |
Nissan Chemical Industries, Ltd. | 1822 |
3 |
National Technology & Engineering Solutions of Sandia, LLC | 1851 |
3 |
International Business Machines Corporation | 60644 |
2 |
E. I. du Pont de Nemours and Company | 4345 |
2 |
Compagnie générale des établissements Michelin SCA | 2477 |
2 |
PRC-DeSoto International, Inc. | 567 |
2 |
Agency for Science, Technology and Research | 3512 |
2 |
Bixby International Corporation | 24 |
2 |
DIC Corporation | 3597 |
2 |
Kingfa SCI & Tech Co. Ltd. | 509 |
2 |
Kureha Corporation | 1026 |
2 |
Other owners | 77 |