Patent holdings for IPC class G21G 4/02

Total number of patents in this class: 210

10-year publication summary

20
17
11
17
24
13
10
19
7
3
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
Neuboron Medtech Ltd.
93
14
Schlumberger Technology Corporation
10530
13
Schlumberger Canada Limited
7163
8
Halliburton Energy Services, Inc.
20649
8
Adelphi Technology, Inc.
16
8
Shine Technologies, LLC
124
8
Schlumberger Technology B.v.
5122
7
Schlumberger Holdings Limited
2850
7
Prad Research and Development Limited
2695
7
Services Petroliers Schlumberger
5715
7
Tae Technologies, Inc.
234
6
Phoenix LLC
22
5
Neuboron Therapy System Ltd.
109
5
Neutron Therapeutics LLC
16
5
Lawrence Livermore National Security, LLC
1905
4
Riken
1685
4
The Trustees of Princeton University
1190
4
Westinghouse Electric Company LLC
1125
4
Joint Stock Company "akme-engineering"
67
3
Starfire Industries, LLC
39
3
Other owners 80