- All sections
- C - Chemistrymetallurgy
- C22C - Alloys
- C22C 9/02 - Alloys based on copper with tin as the next major constituent
Patent holdings for IPC class C22C 9/02
Total number of patents in this class: 727
10-year publication summary
|
58
|
56
|
50
|
48
|
37
|
27
|
15
|
34
|
17
|
7
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| JX Nippon Mining & Metals Corporation | 1499 |
77 |
| The Furukawa Electric Co., Ltd. | 3635 |
55 |
| Mitsubishi Materials Corporation | 2432 |
46 |
| Taiho Kogyo Co., Ltd. | 330 |
29 |
| Sumitomo Electric Industries, Ltd. | 15377 |
26 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2874 |
23 |
| Sumitomo Wiring Systems, Ltd. | 10271 |
21 |
| AutoNetworks Technologies, Ltd. | 6529 |
21 |
| Mitsubishi Shindoh Co., Ltd. | 126 |
21 |
| Wieland-Werke AG | 344 |
18 |
| Materion Corporation | 308 |
12 |
| Diamet Corporation | 92 |
11 |
| Dowa Metaltech Co., Ltd. | 164 |
10 |
| KS Gleitlager GmbH | 71 |
10 |
| Nippon Steel Corporation | 6181 |
10 |
| Nippon Steel & Sumitomo Metal Corporation | 1988 |
10 |
| Senju Metal Industry Co., Ltd. | 675 |
10 |
| Nippon Mining & Metals Co., Ltd. | 123 |
9 |
| NGK Insulators, Ltd. | 4929 |
8 |
| Seagate Technology LLC | 3970 |
7 |
| Other owners | 293 |