Patent holdings for IPC class H01J 17/30

Total number of patents in this class: 8

10-year publication summary

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

Principal owners for this class

Owner
All patents
This class
KLA-Tencor Corporation
2574
2
Seiko Epson Corporation
18724
1
Hamamatsu Photonics K.K.
4161
1
Aerojet Rocketdyne, Inc.
155
1
Ushio Denki Kabushiki Kaisha
1088
1
Powerwave Technologies Sweden AB
19
1
Signify Holding B.V.
6837
1
Other owners 0