Patent holdings for IPC class H01J 3/22

Total number of patents in this class: 6

10-year publication summary

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2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
Centre National de La Recherche Scientifique
10418
1
Ecole Polytechnique
326
1
Institut National de La Recherche Scientifique (inrs)
37
1
Mega ACT Technologies Holding Ltd
1
1
Sanyu Denshi Co., Ltd.
2
1
PNC Bank
140
1
Other owners 0