- 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: 2032
10-year publication summary
|
147
|
128
|
125
|
121
|
98
|
92
|
101
|
100
|
89
|
54
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Materials Corporation | 2472 |
226 |
| JX Nippon Mining & Metals Corporation | 1461 |
153 |
| The Furukawa Electric Co., Ltd. | 3694 |
88 |
| Sumitomo Electric Industries, Ltd. | 16331 |
64 |
| Sumitomo Wiring Systems, Ltd. | 11005 |
41 |
| AutoNetworks Technologies, Ltd. | 7108 |
41 |
| Nippon Micrometal Corporation | 154 |
37 |
| NGK Insulators, Ltd. | 5236 |
33 |
| Mitsubishi Shindoh Co., Ltd. | 121 |
28 |
| Senju Metal Industry Co., Ltd. | 689 |
27 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2836 |
25 |
| Mitsui Mining & Smelting Co., Ltd. | 1100 |
24 |
| Dowa Metaltech Co., Ltd. | 174 |
23 |
| Hitachi Metals, Ltd. | 1898 |
19 |
| Murata Manufacturing Co., Ltd. | 25744 |
19 |
| Materion Corporation | 322 |
17 |
| Meidensha Corporation | 929 |
17 |
| SANYO Special Steel Co., Ltd. | 246 |
16 |
| Nippon Steel Chemical & Material Co., Ltd. | 730 |
16 |
| Taiho Kogyo Co., Ltd. | 326 |
15 |
| Other owners | 1103 |