Patent holdings for IPC class C25B 11/03

Total number of patents in this class: 657

10-year publication summary

60
79
73
69
45
25
31
22
35
9
2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Principal owners for this class

Owner
All patents
This class
Siemens AG
24029
27
de Nora Permelec Ltd
164
19
Sumitomo Electric Industries, Ltd.
16331
16
Panasonic Intellectual Property Management Co., Ltd.
33997
14
Asahi Kasei Kabushiki Kaisha
2833
14
Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation
6178
14
Toshiba Corporation
12560
12
Industrie de Nora S.p.A.
283
12
Covestro Deutschland AG
2833
11
The Chugoku Electric Power Co., Inc.
511
10
The Regents of the University of California
20745
9
National University Corporation Yokohama National University
343
8
Siemens Energy Global GmbH & Co. KG
3345
8
Hysata Pty Ltd
41
8
Aquahydrex Pty Ltd
16
6
JX Nippon Oil & Energy Corporation
978
6
Permelec Electrode Ltd.
19
6
ThyssenKrupp Nucera AG & Co. KGaA
86
6
Centre National de La Recherche Scientifique
11023
5
The Board of Trustees of the Leland Stanford Junior University
6653
5
Other owners 441