- All sections
- C - Chemistry; metallurgy
- C22C - Alloys
- C22C 30/00 - Alloys containing less than 50% by weight of each constituent
Patent holdings for IPC class C22C 30/00
Total number of patents in this class: 1042
10-year publication summary
|
89
|
119
|
103
|
104
|
111
|
83
|
74
|
92
|
84
|
33
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hitachi Metals, Ltd. | 2175 |
40 |
| Kubota Corporation | 3054 |
21 |
| Nippon Steel Corporation | 5649 |
21 |
| Hitachi, Ltd. | 16452 |
17 |
| SANYO Special Steel Co., Ltd. | 201 |
17 |
| Proterial, Ltd. | 638 |
16 |
| Aperam | 104 |
15 |
| TDK Corporation | 6306 |
14 |
| Tanaka Kikinzoku Kogyo K.K. | 589 |
14 |
| General Electric Company | 18133 |
12 |
| POSTECH Academy-industry Foundation | 1101 |
11 |
| Vacuumschmelze GmbH & Co. KG | 253 |
11 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
10 |
| JX Nippon Mining & Metals Corporation | 1576 |
10 |
| Nippon Steel & Sumitomo Metal Corporation | 1990 |
10 |
| Siemens Energy Global GmbH & Co. KG | 2775 |
10 |
| GE Infrastructure Technology, LLC | 5873 |
9 |
| ExxonMobil Chemical Patents Inc. | 4286 |
8 |
| Daido Steel Co., Ltd. | 237 |
8 |
| VDM Metals International GmbH | 97 |
8 |
| Other owners | 760 |