Patent holdings for IPC class H01J 1/18

Total number of patents in this class: 35

10-year publication summary

1
2
2
2
2
1
2
5
3
1
2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Principal owners for this class

Owner
All patents
This class
Denka Company Limited
2759
3
Paton Turbine Technologies LLC
3
3
Hamamatsu Photonics K.K.
4713
2
Kimball Physics, Inc.
4
2
Schlumberger Technology Corporation
11940
1
Schlumberger Canada Limited
7610
1
Schlumberger Technology B.v.
5287
1
Schlumberger Holdings Limited
2660
1
Hitachi High-Tech Science Corporation
48
1
Koninklijke Philips N.V.
26042
1
ASML Netherlands B.V.
8019
1
OSRAM GmbH
2186
1
Amazing Microelectronic Corp.
95
1
GE Sensing & Inspection Technologies GmbH
91
1
MOXTEK, Inc.
226
1
NuFlare Technology, Inc.
928
1
Prad Research and Development Limited
2642
1
Radium Lampenwerk GmbH
17
1
Services Petroliers Schlumberger
6022
1
Tetra Laval Holdings & Finance S.A.
2261
1
Other owners 9