- All sections
- B - Performing operationstransporting
- B21D - Working or processing of sheet metal or metal tubes, rods or profiles without essentially removing materialpunching metal
- B21D 28/26 - Perforating, i.e. punching holes in sheets or flat parts
Patent holdings for IPC class B21D 28/26
Total number of patents in this class: 311
10-year publication summary
|
21
|
23
|
31
|
39
|
35
|
39
|
31
|
17
|
29
|
27
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| TRUMPF Werkzeugmaschinen GmbH + Co. KG | 542 |
26 |
| Nippon Steel Corporation | 6344 |
19 |
| Wilson Tool International Inc. | 158 |
7 |
| Toyota Motor Corporation | 32869 |
6 |
| Denso Corporation | 24480 |
4 |
| JFE Steel Corporation | 6935 |
4 |
| Lapmaster Wolters GmbH | 36 |
4 |
| Milwaukee Electric Tool Corporation | 4472 |
4 |
| Mitsui High-tec, Inc. | 263 |
4 |
| TRUMPF Werkzeugmaschinen SE + Co. KG | 252 |
4 |
| Panasonic Corporation | 20042 |
3 |
| Samsung SDI Co., Ltd. | 8589 |
3 |
| Bayerische Motoren Werke Aktiengesellschaft | 14476 |
3 |
| Altria Client Services LLC | 2218 |
3 |
| Amada Company, Limited | 569 |
3 |
| Feintool International Holding AG | 97 |
3 |
| Salvagnini Italia S.p.A. | 53 |
3 |
| Toyota Boshoku Kabushiki Kaisha | 1421 |
3 |
| LG Electronics Inc. | 73578 |
2 |
| Ford Motor Company | 2713 |
2 |
| Other owners | 201 |