Patent holdings for IPC class G03F 7/28

Total number of patents in this class: 7

10-year publication summary

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2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Principal owners for this class

Owner
All patents
This class
Tokyo Ohka Kogyo Co., Ltd.
1561
3
Texas Instruments Incorporated
19639
1
Shin-Etsu Chemical Co., Ltd.
6134
1
Dai Nippon Printing Co., Ltd.
4263
1
Rainbow Technology Systems LTD
7
1
Other owners 0