- 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: 1942
10-year publication summary
174
|
163
|
156
|
170
|
178
|
169
|
130
|
150
|
108
|
45
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Hitachi Metals, Ltd. | 2175 |
92 |
Nippon Steel Corporation | 5649 |
69 |
Siemens AG | 24990 |
62 |
General Electric Company | 18133 |
55 |
VDM Metals International GmbH | 97 |
51 |
GE Infrastructure Technology, LLC | 5873 |
48 |
Rtx Corporation | 8674 |
48 |
Siemens Energy Global GmbH & Co. KG | 2775 |
39 |
National Institute for Materials Science | 1108 |
38 |
Siemens Energy, Inc. | 1770 |
35 |
Nippon Steel & Sumitomo Metal Corporation | 1990 |
34 |
Safran Aircraft Engines | 5739 |
34 |
Mitsubishi Power, Ltd. | 1680 |
30 |
Mitsubishi Heavy Industries, Ltd. | 8217 |
28 |
SAFRAN S.A. | 518 |
27 |
IHI Corporation | 3268 |
25 |
Haynes International, Inc. | 91 |
24 |
Proterial, Ltd. | 638 |
24 |
Kubota Corporation | 3054 |
23 |
Huntington Alloys Corporation | 69 |
22 |
Other owners | 1134 |