Patent holdings for IPC class G21K 5/02

Total number of patents in this class: 230

10-year publication summary

21
21
13
12
18
11
9
11
11
7
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
Gigaphoton Inc.
1242
14
LeChat
39
12
Hamamatsu Photonics K.K.
4446
10
Tetra Laval Holdings & Finance S.A.
2168
9
Riken
1695
6
ASML Netherlands B.V.
7434
5
Avery Dennison Corporation
1184
5
Rigaku Corporation
441
5
Ushio Denki Kabushiki Kaisha
1190
5
The Regents of the University of California
20059
4
Sumitomo Heavy Industries, Ltd.
1946
4
WBC Photonics, Inc.
136
4
Mitsubishi Heavy Industries, Ltd.
8783
3
Hitachi, Ltd.
15556
3
Shimadzu Corporation
6191
3
HORIBA, Ltd.
824
3
Kyoto University
2809
3
Global Plasma Solutions, Inc.
77
3
Varian Semiconductor Equipment Associates, Inc.
1231
2
Microsoft Technology Licensing, LLC
53891
2
Other owners 125