- 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: 1569
10-year publication summary
|
104
|
97
|
95
|
99
|
76
|
67
|
83
|
66
|
59
|
13
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Materials Corporation | 2461 |
212 |
| JX Nippon Mining & Metals Corporation | 1470 |
140 |
| The Furukawa Electric Co., Ltd. | 3700 |
137 |
| Mitsubishi Shindoh Co., Ltd. | 122 |
94 |
| Sumitomo Electric Industries, Ltd. | 16050 |
43 |
| Dowa Metaltech Co., Ltd. | 170 |
43 |
| NGK Insulators, Ltd. | 5171 |
40 |
| Wieland-Werke AG | 352 |
35 |
| Materion Corporation | 316 |
32 |
| Sumitomo Wiring Systems, Ltd. | 10749 |
31 |
| AutoNetworks Technologies, Ltd. | 6906 |
29 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2832 |
25 |
| Poongsan Corporation | 60 |
24 |
| Hitachi Metals, Ltd. | 1927 |
20 |
| Tohoku University | 2893 |
20 |
| Nippon Mining & Metals Co., Ltd. | 96 |
14 |
| Furukawa Automotive Systems Inc. | 602 |
11 |
| Furukawa Techno Material Co., Ltd. | 29 |
11 |
| Ningbo Powerway Alloy Material Co., Ltd. | 31 |
11 |
| Toyo Kohan Co., Ltd. | 426 |
11 |
| Other owners | 586 |