- All sections
- C - Chemistry; metallurgy
- 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: 724
10-year publication summary
|
60
|
58
|
56
|
50
|
47
|
37
|
26
|
15
|
31
|
7
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| JX Nippon Mining & Metals Corporation | 1576 |
78 |
| The Furukawa Electric Co., Ltd. | 3486 |
56 |
| Mitsubishi Materials Corporation | 2378 |
44 |
| Taiho Kogyo Co., Ltd. | 341 |
30 |
| Sumitomo Electric Industries, Ltd. | 14131 |
27 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2865 |
24 |
| Mitsubishi Shindoh Co., Ltd. | 135 |
24 |
| Sumitomo Wiring Systems, Ltd. | 9367 |
21 |
| AutoNetworks Technologies, Ltd. | 5809 |
21 |
| Wieland-Werke AG | 315 |
16 |
| Materion Corporation | 293 |
12 |
| Diamet Corporation | 93 |
11 |
| KS Gleitlager GmbH | 70 |
10 |
| Nippon Mining & Metals Co., Ltd. | 161 |
10 |
| Nippon Steel Corporation | 5649 |
10 |
| Nippon Steel & Sumitomo Metal Corporation | 1990 |
10 |
| Senju Metal Industry Co., Ltd. | 654 |
10 |
| Dowa Metaltech Co., Ltd. | 150 |
9 |
| NGK Insulators, Ltd. | 4589 |
8 |
| Seagate Technology LLC | 4228 |
7 |
| Other owners | 286 |