- 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 23/00 - Extruding metalImpact extrusion
Patent holdings for IPC class B21C 23/00
Total number of patents in this class: 469
10-year publication summary
|
52
|
46
|
39
|
36
|
34
|
25
|
32
|
20
|
24
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Battelle Memorial Institute | 2534 |
26 |
| Aisin Keikinzoku Co., Ltd. | 83 |
15 |
| Honeywell International Inc. | 13558 |
10 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2865 |
9 |
| UACJ Corporation | 717 |
9 |
| Ball Corporation | 387 |
8 |
| Manchester Copper Products, LLC | 15 |
8 |
| Nippon Steel Corporation | 6589 |
8 |
| Norsk Hydro ASA | 254 |
8 |
| Rio Tinto ALCAN International Limited | 218 |
8 |
| National University Corporation Kumamoto University | 405 |
7 |
| ASMAG-Holding GmbH | 45 |
6 |
| Benteler Automobiltechnik GmbH | 300 |
6 |
| Constellium SINGEN GmbH | 101 |
6 |
| Showa Denko K.K. | 2137 |
5 |
| Holtec International, Inc. | 274 |
5 |
| Korea Institute of Industrial Technology | 1015 |
5 |
| Ube Machinery Corporation, Ltd. | 116 |
5 |
| American Axle & Manufacturing, Inc. | 649 |
4 |
| BIOTRONIK AG | 432 |
4 |
| Other owners | 307 |