- All sections
- C - Chemistry; metallurgy
- C22C - Alloys
- C22C 19/05 - Alloys based on nickel or cobalt based on nickel with chromium
Patent holdings for IPC class C22C 19/05
Total number of patents in this class: 2034
10-year publication summary
|
163
|
156
|
170
|
178
|
172
|
133
|
151
|
110
|
127
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hitachi Metals, Ltd. | 2026 |
92 |
| Nippon Steel Corporation | 5991 |
72 |
| Siemens AG | 24572 |
61 |
| General Electric Company | 17803 |
55 |
| VDM Metals International GmbH | 94 |
51 |
| GE Infrastructure Technology, LLC | 6109 |
50 |
| Rtx Corporation | 9077 |
50 |
| Siemens Energy Global GmbH & Co. KG | 2825 |
47 |
| National Institute for Materials Science | 1107 |
39 |
| Safran Aircraft Engines | 6024 |
38 |
| Siemens Energy, Inc. | 1734 |
36 |
| Nippon Steel & Sumitomo Metal Corporation | 1988 |
34 |
| SAFRAN S.A. | 569 |
30 |
| Proterial, Ltd. | 756 |
29 |
| Mitsubishi Power, Ltd. | 1732 |
28 |
| Mitsubishi Heavy Industries, Ltd. | 8515 |
26 |
| IHI Corporation | 3356 |
25 |
| Haynes International, Inc. | 93 |
24 |
| Kubota Corporation | 3477 |
24 |
| Daido Steel Co., Ltd. | 258 |
23 |
| Other owners | 1200 |