- All sections
- G - Physics
- G03F - Photomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devicesmaterials therefororiginals thereforapparatus specially adapted therefor
- G03F 7/022 - Quinonediazides
Patent holdings for IPC class G03F 7/022
Total number of patents in this class: 224
10-year publication summary
|
12
|
20
|
33
|
20
|
17
|
19
|
9
|
4
|
13
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Toray Industries, Inc. | 6859 |
25 |
| Merck Patent GmbH | 5830 |
19 |
| Sumitomo Bakelite Co., Ltd. | 1485 |
15 |
| Mitsubishi Gas Chemical Company, Inc. | 3412 |
11 |
| Samsung SDI Co., Ltd. | 7844 |
9 |
| Samsung Display Co., Ltd. | 33982 |
8 |
| Dongjin Semichem Co., Ltd. | 472 |
8 |
| Promerus, LLC | 141 |
8 |
| Shin-Etsu Chemical Co., Ltd. | 5571 |
7 |
| Chi MEI Corporation | 82 |
5 |
| Rohm and Haas Electronic Materials Korea Ltd. | 330 |
5 |
| Zeon Corporation | 4063 |
5 |
| Cheil Industries Inc. | 904 |
4 |
| JSR Corporation | 2507 |
4 |
| Asahi Kasei E-materials Corporation | 205 |
4 |
| Asahi Kasei Kabushiki Kaisha | 2627 |
4 |
| DIC Corporation | 3729 |
4 |
| Tokyo Ohka Kogyo Co., Ltd. | 1528 |
4 |
| Samsung Electronics Co., Ltd. | 143021 |
3 |
| Canon Inc. | 39160 |
3 |
| Other owners | 69 |