- 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: 233
10-year publication summary
|
10
|
15
|
31
|
28
|
13
|
16
|
9
|
20
|
16
|
4
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| FUJIFILM Corporation | 29075 |
42 |
| Tokyo Ohka Kogyo Co., Ltd. | 1514 |
16 |
| JSR Corporation | 2497 |
13 |
| Zeon Corporation | 4050 |
13 |
| Mitsui Chemicals, Inc. | 3187 |
9 |
| Shin-Etsu Chemical Co., Ltd. | 5526 |
7 |
| Mitsubishi Chemical Corporation | 4458 |
7 |
| DIC Corporation | 3712 |
7 |
| Central Glass Company, Limited | 1259 |
6 |
| Kuraray Co., Ltd. | 3472 |
6 |
| LG Chem, Ltd. | 17450 |
4 |
| Nikon Corporation | 7138 |
4 |
| Shijiazhuang Chengzhi Yonghua Display Material Co., Ltd. | 196 |
4 |
| Johnson & Johnson Surgical Vision, Inc. | 940 |
4 |
| Showa Denko K.K. | 2299 |
3 |
| Terumo Kabushiki Kaisha | 5478 |
3 |
| The Governing Council of The University of Toronto, | 1441 |
3 |
| Nissan Chemical Industries, Ltd. | 1747 |
3 |
| Standard Biotools Canada Inc. | 82 |
3 |
| Sony Corporation | 31284 |
2 |
| Other owners | 74 |