- All sections
- G - Physics
- G03F - Photomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices; materials therefor; originals therefor; apparatus specially adapted therefor
- G03F 7/022 - Quinonediazides
Patent holdings for IPC class G03F 7/022
Total number of patents in this class: 227
10-year publication summary
21
|
12
|
20
|
33
|
20
|
17
|
18
|
9
|
4
|
5
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Toray Industries, Inc. | 6652 |
22 |
Merck Patent GmbH | 5909 |
19 |
Sumitomo Bakelite Co., Ltd. | 1416 |
13 |
Mitsubishi Gas Chemical Company, Inc. | 3188 |
11 |
Samsung SDI Co., Ltd. | 6671 |
10 |
Promerus, LLC | 172 |
10 |
Samsung Display Co., Ltd. | 30585 |
8 |
Shin-Etsu Chemical Co., Ltd. | 5132 |
7 |
Dongjin Semichem Co., Ltd. | 438 |
6 |
Zeon Corporation | 3854 |
6 |
Chi MEI Corporation | 85 |
5 |
Nissan Chemical Industries, Ltd. | 1822 |
5 |
Rohm and Haas Electronic Materials Korea Ltd. | 546 |
5 |
Tokyo Ohka Kogyo Co., Ltd. | 1481 |
5 |
Cheil Industries Inc. | 944 |
4 |
JSR Corporation | 2476 |
4 |
Asahi Kasei E-materials Corporation | 222 |
4 |
DIC Corporation | 3597 |
4 |
Kolon Industries, Inc. | 1506 |
4 |
Canon Inc. | 36841 |
3 |
Other owners | 72 |