- 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: 918
10-year publication summary
76
|
68
|
61
|
52
|
64
|
43
|
32
|
33
|
21
|
1
|
2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Mitsubishi Shindoh Co., Ltd. | 130 |
86 |
Mitsubishi Materials Corporation | 2408 |
77 |
JX Nippon Mining & Metals Corporation | 1526 |
68 |
The Furukawa Electric Co., Ltd. | 3595 |
45 |
Wieland-Werke AG | 324 |
28 |
Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2905 |
25 |
Sumitomo Electric Industries, Ltd. | 14929 |
15 |
Nippon Mining & Metals Co., Ltd. | 138 |
14 |
Otto Fuchs KG | 53 |
14 |
Xiamen Lota International Co., Ltd. | 127 |
13 |
Nippon Micrometal Corporation | 140 |
12 |
YKK Corporation | 1944 |
12 |
Sumitomo Wiring Systems, Ltd. | 9995 |
11 |
AutoNetworks Technologies, Ltd. | 6309 |
11 |
KITZ Corporation | 203 |
11 |
Taiho Kogyo Co., Ltd. | 335 |
11 |
Dowa Metaltech Co., Ltd. | 158 |
10 |
Kurimoto, Ltd. | 91 |
10 |
Diehl Metall Stiftung & Co. KG | 48 |
9 |
Ningbo Powerway Alloy Material Co., Ltd. | 34 |
9 |
Other owners | 427 |