- All sections
- C - Chemistry; metallurgy
- C22C - Alloys
- C22C 9/04 - Alloys based on copper with zinc as the next major constituent
Patent holdings for IPC class C22C 9/04
Total number of patents in this class: 915
10-year publication summary
95
|
76
|
68
|
61
|
52
|
64
|
43
|
32
|
31
|
8
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Mitsubishi Shindoh Co., Ltd. | 135 |
90 |
Mitsubishi Materials Corporation | 2378 |
74 |
JX Nippon Mining & Metals Corporation | 1576 |
68 |
The Furukawa Electric Co., Ltd. | 3486 |
45 |
Wieland-Werke AG | 315 |
29 |
Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2865 |
24 |
Sumitomo Electric Industries, Ltd. | 14131 |
15 |
Nippon Mining & Metals Co., Ltd. | 161 |
14 |
Otto Fuchs KG | 51 |
13 |
Xiamen Lota International Co., Ltd. | 114 |
13 |
KITZ Corporation | 197 |
12 |
Nippon Micrometal Corporation | 126 |
12 |
YKK Corporation | 1916 |
12 |
Sumitomo Wiring Systems, Ltd. | 9367 |
11 |
AutoNetworks Technologies, Ltd. | 5809 |
11 |
Diehl Metall Stiftung & Co. KG | 50 |
11 |
Taiho Kogyo Co., Ltd. | 341 |
11 |
Dowa Metaltech Co., Ltd. | 150 |
10 |
Kurimoto, Ltd. | 81 |
10 |
Ningbo Powerway Alloy Material Co., Ltd. | 34 |
9 |
Other owners | 421 |