Patent holdings for IPC class C25B 11/02

Total number of patents in this class: 571

10-year publication summary

39
40
51
56
42
39
47
44
63
50
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
Industrie de Nora S.p.A.
277
14
C2cnt LLC
90
11
Panasonic Intellectual Property Management Co., Ltd.
32244
9
Nippon Telegraph and Telephone Corporation
16681
9
Asahi Kasei Kabushiki Kaisha
2710
9
The Chugoku Electric Power Co., Inc.
515
9
Colgate-Palmolive Company
5765
8
King Fahd University of Petroleum and Minerals
1345
8
Evoqua Water Technologies LLC
921
7
The Regents of the University of California
20230
6
Daon Spread technology. Co.,Ltd
7
6
Robert Bosch GmbH
42984
5
Axine Water Technologies Inc.
47
5
GTA, Inc.
7
5
Techwin Co., Ltd.
66
5
Toshiba Corporation
12521
4
FUJIFILM Corporation
29752
4
The Regents of the University of Michigan
4763
4
Korea Institute of Science and Technology
2156
4
de Nora Permelec Ltd
160
4
Other owners 435