Patent holdings for IPC class H01J 23/22

Total number of patents in this class: 6

10-year publication summary

1
1
0
0
2
0
1
2
0
0
2015 2016 2017 2018 2019 2020 2021 2022 2023 2024

Principal owners for this class

Owner
All patents
This class
Toshiba Hokuto Electronics Corporation
27
3
Guangdong University of Technology
466
1
University of Electronic Science and Technology of China
378
1
Virgin Islands Microsystems, Inc.
51
1
Other owners 0