- 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: 1230
10-year publication summary
|
108
|
119
|
84
|
86
|
98
|
52
|
79
|
67
|
64
|
59
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nippon Steel Corporation | 6465 |
81 |
| ATI Properties LLC | 202 |
58 |
| Nippon Steel & Sumitomo Metal Corporation | 1987 |
49 |
| Titanium Metals Corporation | 81 |
36 |
| JX Nippon Mining & Metals Corporation | 1480 |
26 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2873 |
25 |
| The Boeing Company | 20161 |
24 |
| Panasonic Intellectual Property Management Co., Ltd. | 32244 |
20 |
| Toshiba Materials Co., Ltd. | 652 |
17 |
| Karsten Manufacturing Corporation | 3204 |
16 |
| ATI Properties, Inc. | 88 |
15 |
| Tokyo Institute of Technology | 1365 |
13 |
| Materion Newton Inc. | 66 |
13 |
| Rtx Corporation | 9556 |
13 |
| A.L.M.T. Corp. | 233 |
12 |
| IHI Corporation | 3461 |
12 |
| National Institute for Materials Science | 1102 |
11 |
| Public Stock Company "vsmpo-avisma Corporation" | 25 |
11 |
| Safran Aircraft Engines | 6358 |
11 |
| Medtronic, Inc. | 9844 |
10 |
| Other owners | 757 |