- 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: 729
10-year publication summary
|
57
|
56
|
50
|
46
|
37
|
27
|
15
|
33
|
18
|
12
|
| 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 | 1487 |
77 |
| The Furukawa Electric Co., Ltd. | 3679 |
55 |
| Mitsubishi Materials Corporation | 2453 |
46 |
| Taiho Kogyo Co., Ltd. | 330 |
29 |
| Sumitomo Electric Industries, Ltd. | 15576 |
26 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2875 |
22 |
| Sumitomo Wiring Systems, Ltd. | 10422 |
21 |
| AutoNetworks Technologies, Ltd. | 6635 |
21 |
| Mitsubishi Shindoh Co., Ltd. | 126 |
21 |
| Wieland-Werke AG | 345 |
18 |
| Materion Corporation | 310 |
12 |
| Diamet Corporation | 92 |
11 |
| KS Gleitlager GmbH | 72 |
11 |
| Dowa Metaltech Co., Ltd. | 165 |
10 |
| Nippon Steel Corporation | 6321 |
10 |
| Nippon Steel & Sumitomo Metal Corporation | 1987 |
10 |
| Senju Metal Industry Co., Ltd. | 686 |
10 |
| NGK Insulators, Ltd. | 4995 |
8 |
| Daido Metal Company Ltd. | 232 |
8 |
| Nippon Mining & Metals Co., Ltd. | 111 |
8 |
| Other owners | 295 |