- All sections
- C - Chemistrymetallurgy
- C22F - Changing the physical structure of non-ferrous metals or non-ferrous alloys
- C22F 1/18 - High-melting or refractory metals or alloys based thereon
Patent holdings for IPC class C22F 1/18
Total number of patents in this class: 1232
10-year publication summary
|
124
|
86
|
92
|
103
|
59
|
80
|
69
|
64
|
65
|
28
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nippon Steel Corporation | 6814 |
86 |
| ATI Properties LLC | 199 |
56 |
| Nippon Steel & Sumitomo Metal Corporation | 1981 |
49 |
| Titanium Metals Corporation | 83 |
36 |
| JX Nippon Mining & Metals Corporation | 1462 |
25 |
| The Boeing Company | 20145 |
24 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2830 |
24 |
| Panasonic Intellectual Property Management Co., Ltd. | 33792 |
21 |
| Karsten Manufacturing Corporation | 3296 |
16 |
| Toshiba Materials Co., Ltd. | 564 |
15 |
| Rtx Corporation | 10036 |
14 |
| ATI Properties, Inc. | 82 |
13 |
| Tokyo Institute of Technology | 1315 |
13 |
| A.L.M.T. Corp. | 240 |
12 |
| IHI Corporation | 3530 |
12 |
| Public Stock Company "vsmpo-avisma Corporation" | 26 |
12 |
| Materion Newton Inc. | 66 |
12 |
| Safran Aircraft Engines | 6643 |
11 |
| National Institute for Materials Science | 1086 |
10 |
| Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation | 6189 |
10 |
| Other owners | 761 |