Patent holdings for IPC class C01F 5/22

Total number of patents in this class: 83

10-year publication summary

5
5
2
2
3
4
9
4
9
0
2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Principal owners for this class

Owner
All patents
This class
Kyowa Chemical Industry Co., Ltd.
67
7
Tateho Chemical Industries Co., Ltd.
59
6
The Regents of the University of California
20534
4
Konoshima Chemical Co., Ltd.
62
4
SETOLAS Holdings, Inc.
103
4
Aqua Resources Corporation
10
3
Joint Stock Company Kaustik
14
3
Sea Water Chemical Institute, Inc.
9
3
Graymont Western US Inc.
4
2
M. Technique Co., Ltd.
252
2
Carbonfree Chemicals Holdings, LLC
35
2
Abengoa Water S.L.
10
2
Schweizer Salinen AG
17
2
Brimstone Energy Inc.
24
2
BASF SE
21113
1
Mitsubishi Heavy Industries, Ltd.
9020
1
Battelle Memorial Institute
2587
1
Beijing University of Chemical Technology
325
1
Brinemag Pty Ltd
2
1
Central South University
471
1
Other owners 31