- All sections
- B - Performing operations; transporting
- B21D - Working or processing of sheet metal or metal tubes, rods or profiles without essentially removing material; punching 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: 293
10-year publication summary
|
24
|
23
|
32
|
41
|
36
|
39
|
34
|
19
|
29
|
3
|
| 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 | 560 |
26 |
| Nippon Steel Corporation | 6000 |
18 |
| Wilson Tool International Inc. | 157 |
7 |
| Toyota Motor Corporation | 30398 |
6 |
| Denso Corporation | 23747 |
4 |
| JFE Steel Corporation | 6549 |
4 |
| Lapmaster Wolters GmbH | 36 |
4 |
| Mitsui High-tec, Inc. | 266 |
4 |
| Panasonic Corporation | 20322 |
3 |
| Bayerische Motoren Werke Aktiengesellschaft | 13850 |
3 |
| Altria Client Services LLC | 2040 |
3 |
| Amada Company, Limited | 526 |
3 |
| BFC Fahrzeugteile GmbH | 17 |
3 |
| Feintool International Holding AG | 111 |
3 |
| Milwaukee Electric Tool Corporation | 4092 |
3 |
| Osaka Gas Co., Ltd. | 320 |
3 |
| Salvagnini Italia S.p.A. | 53 |
3 |
| Toyota Boshoku Kabushiki Kaisha | 1361 |
3 |
| TRUMPF Werkzeugmaschinen SE + Co. KG | 190 |
3 |
| LG Electronics Inc. | 70957 |
2 |
| Other owners | 185 |