Patent holdings for IPC class H01J 1/18

Total number of patents in this class: 28

10-year publication summary

6
1
1
2
2
2
2
1
2
1
2015 2016 2017 2018 2019 2020 2021 2022 2023 2024

Principal owners for this class

Owner
All patents
This class
Paton Turbine Technologies LLC
3
3
Schlumberger Technology Corporation
9690
2
Hamamatsu Photonics K.K.
4161
2
Schlumberger Canada Limited
6913
1
Schlumberger Technology B.v.
4951
1
Schlumberger Holdings Limited
2947
1
Hitachi High-Tech Science Corporation
326
1
Koninklijke Philips N.V.
22975
1
ASML Netherlands B.V.
6816
1
OSRAM GmbH
2442
1
Amazing Microelectronic Corp.
78
1
Denka Company Limited
2189
1
GE Sensing & Inspection Technologies GmbH
95
1
Prad Research and Development Limited
2696
1
Radium Lampenwerk GmbH
19
1
Services Petroliers Schlumberger
5426
1
Toshiba Electron Tubes & Devices Co., Ltd.
56
1
TWi Limited
17
1
Siemens Healthineers AG
5714
1
Canon Electron Tubes & Devices Co., Ltd.
154
1
Other owners 4