- All sections
- C - Chemistrymetallurgy
- 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: 925
10-year publication summary
|
68
|
61
|
53
|
64
|
43
|
32
|
34
|
21
|
27
|
18
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Materials Corporation | 2472 |
84 |
| Mitsubishi Shindoh Co., Ltd. | 121 |
83 |
| JX Nippon Mining & Metals Corporation | 1461 |
68 |
| The Furukawa Electric Co., Ltd. | 3694 |
43 |
| Wieland-Werke AG | 355 |
35 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2836 |
22 |
| Sumitomo Electric Industries, Ltd. | 16331 |
14 |
| Otto Fuchs KG | 47 |
14 |
| Nippon Micrometal Corporation | 154 |
13 |
| YKK Corporation | 2045 |
13 |
| Xiamen Lota International Co., Ltd. | 206 |
12 |
| Sumitomo Wiring Systems, Ltd. | 11005 |
11 |
| AutoNetworks Technologies, Ltd. | 7108 |
11 |
| Taiho Kogyo Co., Ltd. | 326 |
11 |
| Dowa Metaltech Co., Ltd. | 174 |
10 |
| KITZ Corporation | 209 |
10 |
| Nippon Steel Chemical & Material Co., Ltd. | 730 |
10 |
| Nippon Mining & Metals Co., Ltd. | 88 |
9 |
| Poongsan Corporation | 62 |
9 |
| Diehl Brass Solutions Stiftung & Co. KG | 21 |
9 |
| Other owners | 434 |