- All sections
- C - Chemistrymetallurgy
- C08F - Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C08F 22/04 - Anhydrides, e.g. cyclic anhydrides
Patent holdings for IPC class C08F 22/04
Total number of patents in this class: 15
10-year publication summary
|
1
|
2
|
2
|
1
|
3
|
0
|
7
|
1
|
0
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Chem, Ltd. | 17677 |
2 |
| Cheil Industries Inc. | 909 |
2 |
| Chemetall US, Inc. | 28 |
2 |
| Samsung Electronics Co., Ltd. | 140289 |
1 |
| BASF SE | 20548 |
1 |
| BASF Corporation | 1767 |
1 |
| FINA Technology, Inc. | 532 |
1 |
| Hercules LLC | 231 |
1 |
| ISP Investments Inc. | 465 |
1 |
| South Dakota Board of Regents | 182 |
1 |
| Taimide Tech, Inc. | 6 |
1 |
| Total American Services, Inc. | 28 |
1 |
| Other owners | 0 |