- All sections
- C - Chemistrymetallurgy
- 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: 2100
10-year publication summary
|
163
|
156
|
170
|
178
|
171
|
134
|
152
|
111
|
131
|
74
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hitachi Metals, Ltd. | 1983 |
92 |
| Nippon Steel Corporation | 6255 |
76 |
| Siemens AG | 24477 |
60 |
| VDM Metals International GmbH | 105 |
56 |
| General Electric Company | 13793 |
54 |
| GE Infrastructure Technology, LLC | 6226 |
52 |
| Siemens Energy Global GmbH & Co. KG | 2969 |
49 |
| Rtx Corporation | 9385 |
49 |
| Safran Aircraft Engines | 6280 |
40 |
| Siemens Energy, Inc. | 1690 |
38 |
| National Institute for Materials Science | 1105 |
36 |
| Proterial, Ltd. | 849 |
36 |
| SAFRAN S.A. | 615 |
35 |
| Nippon Steel & Sumitomo Metal Corporation | 1988 |
34 |
| Haynes International, Inc. | 99 |
28 |
| Mitsubishi Power, Ltd. | 1762 |
27 |
| Mitsubishi Heavy Industries, Ltd. | 8725 |
26 |
| ATI Properties LLC | 204 |
24 |
| Daido Steel Co., Ltd. | 270 |
23 |
| IHI Corporation | 3438 |
22 |
| Other owners | 1243 |