- All sections
- B - Performing operationstransporting
- B21D - Working or processing of sheet metal or metal tubes, rods or profiles without essentially removing materialpunching metal
- B21D 28/36 - Perforating, i.e. punching holes using rotatable work or tool holders
Patent holdings for IPC class B21D 28/36
Total number of patents in this class: 79
10-year publication summary
|
6
|
2
|
9
|
4
|
4
|
1
|
3
|
2
|
4
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Amada Company, Limited | 526 |
20 |
| Amada Holdings Co., Ltd. | 292 |
10 |
| Murata Machinery, Ltd. | 1458 |
8 |
| TRUMPF Werkzeugmaschinen GmbH + Co. KG | 560 |
6 |
| Vahterus Oy | 69 |
3 |
| Wilson Tool International Inc. | 157 |
3 |
| GKN EVO EDrive Systems Limited | 9 |
2 |
| Pass Stanztechnik AG | 25 |
2 |
| Trumpf, Inc. | 22 |
2 |
| NSK Ltd. | 2737 |
1 |
| Formtek, Inc. | 45 |
1 |
| GDX North America Inc. | 14 |
1 |
| Hunkeler AG | 19 |
1 |
| Kiekert Aktiengesellschaft | 1372 |
1 |
| Korea JCC Co., Ltd. | 14 |
1 |
| L'Garde, Inc. | 38 |
1 |
| Metal Industries Research & Development Centre | 191 |
1 |
| Quanta Computer Inc. | 1315 |
1 |
| Salvagnini Italia S.p.A. | 53 |
1 |
| Sealstrip Corporation | 28 |
1 |
| Other owners | 12 |