- All sections
- B - Performing operationstransporting
- B21C - Manufacture of metal sheets, wire, rods, tubes, profiles or like semi-manufactured products otherwise than by rollingauxiliary operations used in connection with metal-working without essentially removing material
- B21C 23/04 - Making uncoated products by direct extrusion
Patent holdings for IPC class B21C 23/04
Total number of patents in this class: 50
10-year publication summary
|
0
|
2
|
2
|
0
|
5
|
9
|
4
|
4
|
5
|
6
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Battelle Memorial Institute | 2481 |
20 |
| Danieli & C. Officine Meccaniche S.p.A. | 715 |
3 |
| Shandong University | 1040 |
2 |
| Lockheed Martin Corporation | 3277 |
1 |
| Commonwealth Scientific and Industrial Research Organisation | 1654 |
1 |
| Constellium SINGEN GmbH | 93 |
1 |
| GKN Driveline International GmbH | 157 |
1 |
| Guangdong Oppo Mobile Telecommunications Corp., Ltd. | 20925 |
1 |
| Korea Automotive Technology Institute | 82 |
1 |
| MadeSolid, Inc. | 3 |
1 |
| Magna International Inc. | 1226 |
1 |
| Nidec Corporation | 2659 |
1 |
| Nippon Steel Corporation | 6231 |
1 |
| Norsk Hydro ASA | 257 |
1 |
| Ohio University | 365 |
1 |
| Pukyong National University Industry-University Cooperation Foundation | 337 |
1 |
| SMS Eumuco GmbH | 2 |
1 |
| Technische Universitat Dortmund | 98 |
1 |
| Ube Machinery Corporation, Ltd. | 121 |
1 |
| MELD Manufacturing Corporation | 50 |
1 |
| Other owners | 8 |