- All sections
- B - Performing operationstransporting
- B21D - Working or processing of sheet metal or metal tubes, rods or profiles without essentially removing materialpunching metal
- B21D 28/34 - Perforating toolsDie holders
Patent holdings for IPC class B21D 28/34
Total number of patents in this class: 335
10-year publication summary
|
30
|
34
|
35
|
26
|
28
|
37
|
21
|
16
|
18
|
7
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Wilson Tool International Inc. | 156 |
25 |
| TRUMPF Werkzeugmaschinen GmbH + Co. KG | 522 |
20 |
| Milwaukee Electric Tool Corporation | 4943 |
17 |
| Nippon Steel Corporation | 6839 |
16 |
| Amada Holdings Co., Ltd. | 267 |
10 |
| Panasonic Intellectual Property Management Co., Ltd. | 33845 |
7 |
| Amada Company, Limited | 621 |
6 |
| Mate Precision Tooling, Inc. | 29 |
6 |
| Nippon Steel & Sumitomo Metal Corporation | 1981 |
6 |
| Salvagnini Italia S.p.A. | 63 |
6 |
| Standard Lifters, Inc. | 98 |
6 |
| Greenlee Tools, Inc. | 194 |
6 |
| Mate Precision Technologies Inc. | 39 |
5 |
| Amada Tool America, Inc. | 8 |
4 |
| Murata Machinery, Ltd. | 1589 |
4 |
| Oiles Corporation | 498 |
4 |
| ONES Co., Ltd. | 4 |
4 |
| Toyota Boshoku Kabushiki Kaisha | 1497 |
4 |
| Toyota Motor Corporation | 35578 |
3 |
| Samsung SDI Co., Ltd. | 10524 |
3 |
| Other owners | 173 |