Patent holdings for IPC class C25B 11/03

Total number of patents in this class: 642

10-year publication summary

65
60
79
73
72
45
24
31
19
15
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
Siemens AG
24547
27
de Nora Permelec Ltd
158
19
Sumitomo Electric Industries, Ltd.
15377
16
Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation
6269
14
Toshiba Corporation
12300
13
Asahi Kasei Kabushiki Kaisha
2640
13
Industrie de Nora S.p.A.
277
13
Panasonic Intellectual Property Management Co., Ltd.
31022
12
Covestro Deutschland AG
2725
11
The Chugoku Electric Power Co., Inc.
514
10
The Regents of the University of California
19839
8
National University Corporation Yokohama National University
335
8
Edac Labs, Inc.
16
8
Centre National de La Recherche Scientifique
10350
6
Aquahydrex Pty Ltd
16
6
JX Nippon Oil & Energy Corporation
999
6
Permelec Electrode Ltd.
19
6
The Board of Trustees of the Leland Stanford Junior University
6380
5
Wisconsin Alumni Research Foundation
3864
5
Delta Faucet Company
2751
5
Other owners 431