- All sections
- C - Chemistry; metallurgy
- C22C - Alloys
- C22C 9/00 - Alloys based on copper
Patent holdings for IPC class C22C 9/00
Total number of patents in this class: 1856
10-year publication summary
|
163
|
158
|
147
|
128
|
124
|
121
|
92
|
90
|
94
|
33
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Materials Corporation | 2378 |
206 |
| JX Nippon Mining & Metals Corporation | 1576 |
155 |
| The Furukawa Electric Co., Ltd. | 3486 |
82 |
| Sumitomo Electric Industries, Ltd. | 14131 |
58 |
| Sumitomo Wiring Systems, Ltd. | 9367 |
36 |
| AutoNetworks Technologies, Ltd. | 5809 |
36 |
| Nippon Micrometal Corporation | 126 |
36 |
| Mitsubishi Shindoh Co., Ltd. | 135 |
33 |
| NGK Insulators, Ltd. | 4589 |
31 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2865 |
30 |
| Senju Metal Industry Co., Ltd. | 654 |
26 |
| Mitsui Mining & Smelting Co., Ltd. | 1373 |
25 |
| Hitachi Metals, Ltd. | 2175 |
19 |
| Murata Manufacturing Co., Ltd. | 22355 |
19 |
| Dowa Metaltech Co., Ltd. | 150 |
19 |
| Meidensha Corporation | 823 |
17 |
| Taiho Kogyo Co., Ltd. | 341 |
17 |
| Nippon Steel Chemical & Material Co., Ltd. | 571 |
16 |
| Tohoku University | 2526 |
15 |
| Materion Corporation | 293 |
14 |
| Other owners | 966 |