Patent holdings for IPC class C21B 3/08

Total number of patents in this class: 155

10-year publication summary

9
6
13
14
10
20
15
16
8
0
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
Xi'an Jiaotong University
628
16
Paul Wurth S.A.
409
12
Baoshan Iron & Steel Co., Ltd.
902
10
Truyoins S.r.l.
8
8
Siemens Plc
71
5
JFE Steel Corporation
6587
5
Primetals Technologies Austria GmbH
514
5
Siemens AG
24568
4
Loesche GmbH
80
4
Radmat AG
19
4
Siemens VAI Metals Technologies GmbH
226
3
ArcelorMittal
2077
3
Tenova S.p.A.
155
3
G.a.p. S.p.A.
6
2
Midrex Technologies, Inc.
103
2
POSCO
2204
2
Shandong University
977
2
Uvån Holding AB
16
2
CICSA S.r.l.
10
2
Qingdao DaNeng Environmental Protection Equipment Co., Ltd.
6
2
Other owners 59