- 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: 481
10-year publication summary
|
54
|
48
|
41
|
39
|
36
|
27
|
35
|
20
|
25
|
14
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Battelle Memorial Institute | 2596 |
29 |
| Aisin Keikinzoku Co., Ltd. | 84 |
15 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2835 |
9 |
| Norsk Hydro ASA | 250 |
9 |
| UACJ Corporation | 726 |
9 |
| Ball Corporation | 399 |
8 |
| Manchester Copper Products, LLC | 15 |
8 |
| Nippon Steel Corporation | 6738 |
8 |
| Rio Tinto ALCAN International Limited | 218 |
8 |
| National University Corporation Kumamoto University | 409 |
7 |
| ASMAG-Holding GmbH | 44 |
6 |
| Benteler Automobiltechnik GmbH | 302 |
6 |
| Constellium SINGEN GmbH | 108 |
6 |
| Solstice Advanced Materials US, Inc. | 896 |
6 |
| Showa Denko K.K. | 2092 |
5 |
| Holtec International, Inc. | 275 |
5 |
| Korea Institute of Industrial Technology | 1022 |
5 |
| Ube Machinery Corporation, Ltd. | 117 |
5 |
| Honeywell International Inc. | 12790 |
4 |
| American Axle & Manufacturing, Inc. | 637 |
4 |
| Other owners | 319 |