- All sections
- C - Chemistrymetallurgy
- C22C - Alloys
- C22C 33/00 - Making ferrous alloys
Patent holdings for IPC class C22C 33/00
Total number of patents in this class: 201
10-year publication summary
|
14
|
22
|
16
|
14
|
14
|
14
|
14
|
13
|
16
|
7
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| SunCoke Technology and Development LLC | 248 |
12 |
| Apple Inc. | 58317 |
7 |
| Toyota Motor Corporation | 35106 |
5 |
| Newsouth Innovations Pty Limited | 613 |
5 |
| Regents of the University of Minnesota | 2773 |
5 |
| Qingdao Yunlu Advanced Materials Technology Co., Ltd. | 44 |
5 |
| Seiko Epson Corporation | 20099 |
4 |
| California Institute of Technology | 4023 |
4 |
| Baoshan Iron & Steel Co., Ltd. | 1092 |
4 |
| Crucible Intellectual Property, LLC | 85 |
4 |
| Kang, James | 4 |
4 |
| Murata Manufacturing Co., Ltd. | 25615 |
3 |
| TDK Corporation | 6833 |
3 |
| Massachusetts Institute of Technology | 10210 |
3 |
| ArcelorMittal | 2608 |
3 |
| Elkem AS | 57 |
3 |
| Elkem ASA | 210 |
3 |
| Rolex S.A. | 716 |
3 |
| Delta Electronics (Japan), Inc. | 46 |
3 |
| Proterial, Ltd. | 929 |
3 |
| Other owners | 115 |