- All sections
- B - Performing operationstransporting
- B21J - Forginghammeringpressing metalrivetingforge furnaces
- B21J 1/02 - Preliminary treatment of metal stock without particular shaping, e.g. salvaging segregated zones, forging or pressing in the rough
Patent holdings for IPC class B21J 1/02
Total number of patents in this class: 101
10-year publication summary
|
12
|
5
|
9
|
4
|
2
|
6
|
8
|
3
|
5
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| ATI Properties LLC | 203 |
8 |
| Hitachi Metals, Ltd. | 1955 |
6 |
| Proterial, Ltd. | 887 |
5 |
| Bharat Forge Ltd. | 45 |
4 |
| GFM - GmbH | 32 |
4 |
| Safran Aircraft Engines | 6420 |
4 |
| The Boeing Company | 20052 |
3 |
| ATI Properties, Inc. | 88 |
3 |
| Eaton Capital | 9 |
3 |
| JFE Steel Corporation | 7090 |
3 |
| JX Nippon Mining & Metals Corporation | 1479 |
3 |
| SCHOTT AG | 1716 |
3 |
| Furuya Metal Co., Ltd. | 114 |
2 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2861 |
2 |
| Smith & Nephew, Inc. | 2667 |
2 |
| Sumitomo Heavy Industries, Ltd. | 1981 |
2 |
| Apple Inc. | 56547 |
1 |
| Honda Motor Co., Ltd. | 25780 |
1 |
| NGK Insulators, Ltd. | 5149 |
1 |
| Hilti Aktiengesellschaft | 3541 |
1 |
| Other owners | 40 |