Patent holdings for IPC class C21D 1/78

Total number of patents in this class: 78

10-year publication summary

9
7
4
6
7
6
6
5
3
2
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
ArcelorMittal
2272
4
United States Steel Corporation
174
4
POSCO
2186
3
The Texas a & M University System
1690
3
Voestalpine Stahl GmbH
353
3
Siemens AG
24520
2
Schaeffler Technologies AG & Co. KG
9818
2
AK Steel Properties, Inc.
75
2
Aktiebolaget SKF
2937
2
JFE Steel Corporation
6816
2
Tata Steel Limited
175
2
ThyssenKrupp Steel Europe AG
954
2
COLDfire Technology, LLC
2
2
Buffalo Armory Group, LLC
2
2
General Electric Company
13811
1
Honda Motor Co., Ltd.
25174
1
Sumitomo Electric Industries, Ltd.
15428
1
Robert Bosch GmbH
42632
1
Koninklijke Philips Electronics N.V.
9765
1
Caterpillar Inc.
9530
1
Other owners 37