- All sections
- C - Chemistrymetallurgy
- C08L - Compositions of macromolecular compounds
- C08L 81/08 - Polysulfonates
Patent holdings for IPC class C08L 81/08
Total number of patents in this class: 23
10-year publication summary
|
0
|
6
|
2
|
5
|
1
|
2
|
1
|
0
|
3
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Chevron U.S.A. Inc. | 4186 |
2 |
| DuPont Electronic Materials International, LLC | 431 |
2 |
| 3m Innovative Properties Company | 17455 |
1 |
| BASF SE | 21334 |
1 |
| The Regents of the University of California | 20987 |
1 |
| The Boeing Company | 20232 |
1 |
| Eastman Kodak Company | 2562 |
1 |
| Sumitomo Chemical Company, Limited | 8995 |
1 |
| Shin-Etsu Chemical Co., Ltd. | 6173 |
1 |
| Korea Institute of Science and Technology | 2269 |
1 |
| Entegris, Inc. | 2042 |
1 |
| National Institute for Materials Science | 1092 |
1 |
| RASIRC, Inc. | 48 |
1 |
| Shofu, Inc. | 212 |
1 |
| Soochow University | 1795 |
1 |
| Dankook University Cheonan Campus Industry Academic Cooperation Foundation | 121 |
1 |
| Unomedical A/S | 207 |
1 |
| Nissan Chemical Corporation | 2310 |
1 |
| Mimos Bhd. | 975 |
1 |
| META Platforms Technologies, LLC | 6554 |
1 |
| Other owners | 1 |