- 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: 82
10-year publication summary
|
4
|
2
|
9
|
4
|
4
|
1
|
3
|
2
|
4
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Amada Company, Limited | 565 |
20 |
| Amada Holdings Co., Ltd. | 277 |
10 |
| Murata Machinery, Ltd. | 1505 |
8 |
| TRUMPF Werkzeugmaschinen GmbH + Co. KG | 548 |
6 |
| Vahterus Oy | 71 |
3 |
| Wilson Tool International Inc. | 158 |
3 |
| GKN EVO EDrive Systems Limited | 9 |
2 |
| Pass Stanztechnik AG | 26 |
2 |
| Trumpf, Inc. | 21 |
2 |
| Mitsubishi Electric Corporation | 46249 |
1 |
| NSK Ltd. | 2791 |
1 |
| Formtek, Inc. | 43 |
1 |
| Hunkeler AG | 21 |
1 |
| Kiekert Aktiengesellschaft | 1451 |
1 |
| Korea JCC Co., Ltd. | 14 |
1 |
| L'Garde, Inc. | 43 |
1 |
| Matthews International Corporation | 331 |
1 |
| Metal Industries Research & Development Centre | 222 |
1 |
| Mississippi State University | 168 |
1 |
| Quanta Computer Inc. | 1358 |
1 |
| Other owners | 15 |