- 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: 200
10-year publication summary
|
14
|
22
|
16
|
14
|
14
|
14
|
14
|
14
|
16
|
8
|
| 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 | 227 |
12 |
| Apple Inc. | 59562 |
7 |
| Toyota Motor Corporation | 36544 |
5 |
| Newsouth Innovations Pty Limited | 631 |
5 |
| Regents of the University of Minnesota | 2825 |
5 |
| Qingdao Yunlu Advanced Materials Technology Co., Ltd. | 46 |
5 |
| Seiko Epson Corporation | 20575 |
4 |
| California Institute of Technology | 4051 |
4 |
| Baoshan Iron & Steel Co., Ltd. | 1141 |
4 |
| Crucible Intellectual Property, LLC | 82 |
4 |
| Elkem AS | 55 |
4 |
| Kang, James | 4 |
4 |
| Murata Manufacturing Co., Ltd. | 26053 |
3 |
| TDK Corporation | 7038 |
3 |
| Massachusetts Institute of Technology | 10335 |
3 |
| ArcelorMittal | 2766 |
3 |
| Elkem ASA | 210 |
3 |
| Rolex S.A. | 753 |
3 |
| Delta Electronics (Japan), Inc. | 53 |
3 |
| Proterial, Ltd. | 960 |
3 |
| Other owners | 113 |