- All sections
- C - Chemistry; metallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 381/12 - Sulfonium compounds
Patent holdings for IPC class C07C 381/12
Total number of patents in this class: 498
10-year publication summary
|
33
|
33
|
33
|
29
|
27
|
30
|
49
|
38
|
51
|
16
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| FUJIFILM Corporation | 27102 |
70 |
| JSR Corporation | 2476 |
66 |
| Shin-Etsu Chemical Co., Ltd. | 5132 |
64 |
| Tokyo Ohka Kogyo Co., Ltd. | 1481 |
52 |
| Sumitomo Chemical Company, Limited | 8808 |
42 |
| Rohm and Haas Electronic Materials LLC | 637 |
23 |
| San-Apro Limited | 73 |
20 |
| Central Glass Company, Limited | 1244 |
15 |
| Toyo Gosei Co., Ltd. | 111 |
14 |
| Samsung Electronics Co., Ltd. | 131630 |
10 |
| Changzhou Tronly Advanced Electronic Materials Co., Ltd. | 67 |
6 |
| Changzhou Tronly New Electronic Materials Co.,Ltd. | 66 |
6 |
| BASF SE | 19740 |
5 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 36809 |
4 |
| AZ Electronic Materials USA Corp. | 48 |
4 |
| SK Materials Performance Co., Ltd. | 19 |
4 |
| International Business Machines Corporation | 60644 |
3 |
| Tokyo Electron Limited | 11599 |
3 |
| DSM IP Assets B.V. | 5856 |
3 |
| Dow Global Technologies LLC | 10147 |
3 |
| Other owners | 81 |