- All sections
- C - Chemistrymetallurgy
- 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: 1535
10-year publication summary
|
114
|
105
|
98
|
97
|
101
|
78
|
66
|
87
|
65
|
43
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Materials Corporation | 2442 |
208 |
| JX Nippon Mining & Metals Corporation | 1489 |
140 |
| The Furukawa Electric Co., Ltd. | 3646 |
136 |
| Mitsubishi Shindoh Co., Ltd. | 126 |
94 |
| Sumitomo Electric Industries, Ltd. | 15455 |
43 |
| Dowa Metaltech Co., Ltd. | 164 |
41 |
| NGK Insulators, Ltd. | 4949 |
40 |
| Materion Corporation | 309 |
32 |
| Sumitomo Wiring Systems, Ltd. | 10329 |
31 |
| Wieland-Werke AG | 341 |
31 |
| AutoNetworks Technologies, Ltd. | 6566 |
29 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2875 |
26 |
| Poongsan Corporation | 55 |
24 |
| Hitachi Metals, Ltd. | 1982 |
20 |
| Tohoku University | 2780 |
20 |
| Nippon Mining & Metals Co., Ltd. | 113 |
15 |
| Furukawa Automotive Systems Inc. | 587 |
11 |
| Furukawa Techno Material Co., Ltd. | 29 |
11 |
| Ningbo Powerway Alloy Material Co., Ltd. | 33 |
11 |
| Toyo Kohan Co., Ltd. | 420 |
11 |
| Other owners | 561 |