Patent holdings for IPC class C21B 9/16

Total number of patents in this class: 7

10-year publication summary

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

Principal owners for this class

Owner
All patents
This class
Paul Wurth S.A.
409
2
Paul Wurth Deutschland GmbH
28
2
Siemens Plc
71
1
Paul Wurth Refractory & Engineering GmbH
12
1
Excello Co., Ltd.
12
1
Other owners 0