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
2271
4
United States Steel Corporation
174
4
POSCO
2188
3
The Texas a & M University System
1684
3
Voestalpine Stahl GmbH
354
3
Siemens AG
24525
2
Schaeffler Technologies AG & Co. KG
9807
2
AK Steel Properties, Inc.
75
2
Aktiebolaget SKF
2934
2
JFE Steel Corporation
6809
2
Tata Steel Limited
175
2
ThyssenKrupp Steel Europe AG
952
2
COLDfire Technology, LLC
2
2
Buffalo Armory Group, LLC
2
2
General Electric Company
13829
1
Honda Motor Co., Ltd.
25166
1
Sumitomo Electric Industries, Ltd.
15414
1
Robert Bosch GmbH
42614
1
Koninklijke Philips Electronics N.V.
9805
1
Caterpillar Inc.
9527
1
Other owners 37