- All sections
- C - Chemistrymetallurgy
- C08F - Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C08F 20/38 - Esters containing sulfur
Patent holdings for IPC class C08F 20/38
Total number of patents in this class: 247
10-year publication summary
|
14
|
30
|
28
|
13
|
16
|
9
|
18
|
16
|
18
|
5
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| FUJIFILM Corporation | 30063 |
45 |
| Tokyo Ohka Kogyo Co., Ltd. | 1548 |
18 |
| JSR Corporation | 2535 |
14 |
| Mitsui Chemicals, Inc. | 3225 |
13 |
| Zeon Corporation | 4125 |
13 |
| Mitsubishi Chemical Corporation | 4671 |
8 |
| Shin-Etsu Chemical Co., Ltd. | 5878 |
7 |
| DIC Corporation | 3891 |
7 |
| Central Glass Company, Limited | 1282 |
6 |
| Kuraray Co., Ltd. | 3559 |
6 |
| LG Chem, Ltd. | 17745 |
4 |
| Nikon Corporation | 7266 |
4 |
| Shijiazhuang Chengzhi Yonghua Display Material Co., Ltd. | 200 |
4 |
| Johnson & Johnson Surgical Vision, Inc. | 931 |
4 |
| Terumo Kabushiki Kaisha | 5678 |
3 |
| The Governing Council of The University of Toronto, | 1525 |
3 |
| Nissan Chemical Industries, Ltd. | 1683 |
3 |
| Standard Biotools Canada Inc. | 95 |
3 |
| Sony Corporation | 30578 |
2 |
| Samsung SDI Co., Ltd. | 9317 |
2 |
| Other owners | 78 |