- 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: 1945
10-year publication summary
|
156
|
146
|
126
|
121
|
118
|
94
|
91
|
98
|
97
|
56
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Materials Corporation | 2449 |
219 |
| JX Nippon Mining & Metals Corporation | 1488 |
153 |
| The Furukawa Electric Co., Ltd. | 3667 |
83 |
| Sumitomo Electric Industries, Ltd. | 15529 |
59 |
| Sumitomo Wiring Systems, Ltd. | 10383 |
38 |
| AutoNetworks Technologies, Ltd. | 6606 |
38 |
| Nippon Micrometal Corporation | 150 |
37 |
| NGK Insulators, Ltd. | 4968 |
35 |
| Mitsubishi Shindoh Co., Ltd. | 126 |
29 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2869 |
28 |
| Senju Metal Industry Co., Ltd. | 684 |
27 |
| Mitsui Mining & Smelting Co., Ltd. | 1489 |
26 |
| Dowa Metaltech Co., Ltd. | 164 |
22 |
| Hitachi Metals, Ltd. | 1977 |
19 |
| Murata Manufacturing Co., Ltd. | 24603 |
19 |
| Meidensha Corporation | 888 |
17 |
| Materion Corporation | 309 |
16 |
| Taiho Kogyo Co., Ltd. | 330 |
16 |
| Nippon Steel Chemical & Material Co., Ltd. | 650 |
16 |
| SANYO Special Steel Co., Ltd. | 223 |
14 |
| Other owners | 1034 |