- All sections
- C - Chemistry; metallurgy
- C22F - Changing the physical structure of non-ferrous metals or non-ferrous alloys
- C22F 1/08 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of copper or alloys based thereon
Patent holdings for IPC class C22F 1/08
Total number of patents in this class: 1484
10-year publication summary
|
112
|
114
|
105
|
98
|
97
|
101
|
76
|
65
|
85
|
29
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Materials Corporation | 2378 |
198 |
| JX Nippon Mining & Metals Corporation | 1576 |
142 |
| The Furukawa Electric Co., Ltd. | 3486 |
129 |
| Mitsubishi Shindoh Co., Ltd. | 135 |
97 |
| Sumitomo Electric Industries, Ltd. | 14131 |
46 |
| NGK Insulators, Ltd. | 4589 |
37 |
| Dowa Metaltech Co., Ltd. | 150 |
37 |
| Sumitomo Wiring Systems, Ltd. | 9367 |
31 |
| AutoNetworks Technologies, Ltd. | 5809 |
29 |
| Materion Corporation | 293 |
29 |
| Wieland-Werke AG | 315 |
29 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2865 |
27 |
| Poongsan Corporation | 54 |
24 |
| Hitachi Metals, Ltd. | 2175 |
21 |
| Tohoku University | 2526 |
18 |
| Nippon Mining & Metals Co., Ltd. | 161 |
17 |
| Ningbo Powerway Alloy Material Co., Ltd. | 34 |
12 |
| Furukawa Automotive Systems Inc. | 558 |
11 |
| Furukawa Techno Material Co., Ltd. | 29 |
11 |
| Toyo Kohan Co., Ltd. | 413 |
11 |
| Other owners | 528 |