Patent holdings for IPC class H01J 19/44

Total number of patents in this class: 11

10-year publication summary

0
1
1
2
2
2
0
0
1
0
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
Evince Technology Limited
10
2
Modern Hydrogen, Inc.
34
2
Samsung Electronics Co., Ltd.
147334
1
The Boeing Company
20098
1
STMicroelectronics S.r.l.
3608
1
Shimadzu Corporation
6187
1
ion Technology Solutions, LLC
14
1
Elrog GmbH & Co Elektronenröhren KG
1
1
Modern Electron, Inc.
16
1
Other owners 0