- All sections
- C - Chemistrymetallurgy
- C22C - Alloys
- C22C 9/00 - Alloys based on copper
Patent holdings for IPC class C22C 9/00
Total number of patents in this class: 1920
10-year publication summary
|
158
|
147
|
128
|
124
|
121
|
95
|
92
|
98
|
96
|
28
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Materials Corporation | 2416 |
216 |
| JX Nippon Mining & Metals Corporation | 1502 |
154 |
| The Furukawa Electric Co., Ltd. | 3610 |
83 |
| Sumitomo Electric Industries, Ltd. | 15202 |
59 |
| Sumitomo Wiring Systems, Ltd. | 10157 |
38 |
| AutoNetworks Technologies, Ltd. | 6442 |
38 |
| Nippon Micrometal Corporation | 141 |
36 |
| NGK Insulators, Ltd. | 4853 |
35 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2865 |
29 |
| Mitsubishi Shindoh Co., Ltd. | 127 |
29 |
| Mitsui Mining & Smelting Co., Ltd. | 1440 |
27 |
| Senju Metal Industry Co., Ltd. | 674 |
27 |
| Dowa Metaltech Co., Ltd. | 161 |
20 |
| Hitachi Metals, Ltd. | 1993 |
19 |
| Murata Manufacturing Co., Ltd. | 24137 |
19 |
| Meidensha Corporation | 868 |
17 |
| Taiho Kogyo Co., Ltd. | 331 |
16 |
| Nippon Steel Chemical & Material Co., Ltd. | 624 |
16 |
| Materion Corporation | 305 |
15 |
| SANYO Special Steel Co., Ltd. | 219 |
14 |
| Other owners | 1013 |