Patent holdings for IPC class C22C 21/06

Total number of patents in this class: 963

10-year publication summary

74
85
111
62
69
60
64
51
54
18
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
UACJ Corporation
679
81
Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
2866
79
Novelis Inc.
732
78
The Furukawa Electric Co., Ltd.
3623
34
Nippon Light Metal Company, Ltd.
659
28
Novelis Koblenz GmbH
85
18
Arconic Technologies LLC
330
16
Korea Institute of Industrial Technology
1011
15
Nippon Steel Corporation
6139
15
Aleris Rolled Products Germany GmbH
62
14
Showa Denko K.K.
2279
13
Resonac Corporation
2644
13
Sumitomo Electric Industries, Ltd.
15292
12
Hydro Aluminium Rolled Products GmbH
117
12
Constellium Issoire
218
9
Sumitomo Light Metal Industries, Ltd.
58
9
Alcoa Inc.
295
8
Seagate Technology LLC
3970
7
Furukawa Automotive Systems Inc.
585
7
POSCO Co., Ltd.
1381
7
Other owners 488