- All sections
- C - Chemistry; metallurgy
- C22C - Alloys
- C22C 21/02 - Alloys based on aluminium with silicon as the next major constituent
Patent holdings for IPC class C22C 21/02
Total number of patents in this class: 1647
10-year publication summary
137
|
159
|
166
|
165
|
133
|
123
|
133
|
125
|
157
|
45
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
UACJ Corporation | 631 |
91 |
Novelis Inc. | 656 |
68 |
Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2865 |
55 |
Nippon Light Metal Company, Ltd. | 645 |
53 |
Constellium Neuf-brisach | 115 |
41 |
The Furukawa Electric Co., Ltd. | 3486 |
36 |
Nippon Steel Corporation | 5649 |
36 |
ArcelorMittal | 1887 |
28 |
Arconic Technologies LLC | 219 |
24 |
Showa Denko K.K. | 2539 |
23 |
Aleris Rolled Products Germany GmbH | 62 |
23 |
GM Global Technology Operations LLC | 13620 |
21 |
Novelis Koblenz GmbH | 93 |
21 |
POSCO Co., Ltd. | 1059 |
19 |
BYD Company Limited | 3700 |
18 |
Furukawa Automotive Systems Inc. | 558 |
17 |
Hydro Aluminium Rolled Products GmbH | 118 |
17 |
Federal-Mogul Nurnberg GmbH | 137 |
16 |
Rio Tinto ALCAN International Limited | 214 |
16 |
Resonac Corporation | 2233 |
16 |
Other owners | 1008 |