Patent holdings for IPC class C22B 9/187

Total number of patents in this class: 7

10-year publication summary

0
0
0
0
0
1
1
1
0
0
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
Hitachi Metals, Ltd.
1985
1
Dowa ECO-SYSTEM Co., Ltd.
55
1
Mitsubishi Materials Corporation
2437
1
Nippon Steel Corporation
6203
1
Soochow University
1734
1
Sumitomo Metal Industries, Ltd.
386
1
Longnan Longyi Heavy Rare-earth Technology Co., Ltd.
8
1
Other owners 0