Patent holdings for IPC class C25B 11/03

Total number of patents in this class: 655

10-year publication summary

65
58
79
71
68
43
23
28
19
27
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
Siemens AG
24353
27
de Nora Permelec Ltd
160
19
Sumitomo Electric Industries, Ltd.
15659
15
Panasonic Intellectual Property Management Co., Ltd.
32105
14
Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation
6262
14
Toshiba Corporation
12516
13
Asahi Kasei Kabushiki Kaisha
2702
13
Industrie de Nora S.p.A.
274
13
Covestro Deutschland AG
2774
11
The Chugoku Electric Power Co., Inc.
515
10
The Regents of the University of California
20137
9
National University Corporation Yokohama National University
338
8
Siemens Energy Global GmbH & Co. KG
3026
8
Edac Labs, Inc.
16
8
Centre National de La Recherche Scientifique
10576
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
6487
5
Wisconsin Alumni Research Foundation
3887
5
Other owners 439