- All sections
- B - Performing operationstransporting
- B21D - Working or processing of sheet metal or metal tubes, rods or profiles without essentially removing materialpunching metal
- B21D 28/16 - Shoulder or burr prevention
Patent holdings for IPC class B21D 28/16
Total number of patents in this class: 151
10-year publication summary
|
12
|
11
|
12
|
9
|
7
|
5
|
10
|
7
|
7
|
7
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nippon Steel Corporation | 6982 |
20 |
| Feintool International Holding AG | 95 |
14 |
| Robert Bosch GmbH | 44327 |
13 |
| TRUMPF Werkzeugmaschinen GmbH + Co. KG | 516 |
5 |
| Unipres Corporation | 74 |
5 |
| NHK Spring Co., Ltd. | 2008 |
4 |
| ZF Friedrichshafen AG | 7276 |
3 |
| Guangdong Oppo Mobile Telecommunications Corp., Ltd. | 23646 |
3 |
| Kuroda Precision Industries Ltd. | 114 |
3 |
| Lapmaster Wolters GmbH | 34 |
3 |
| Nippon Steel & Sumitomo Metal Corporation | 1981 |
3 |
| Toyota Boshoku Kabushiki Kaisha | 1508 |
3 |
| POSCO Mobility Solution Corporation | 21 |
3 |
| Honda Motor Co., Ltd. | 26309 |
2 |
| NSK Ltd. | 2845 |
2 |
| Benteler Automobiltechnik GmbH | 308 |
2 |
| Centre Technique des Industries Mecaniques | 68 |
2 |
| Hugo Benzing GmbH & Co. KG | 23 |
2 |
| Inter-University Research Institute Corporation High Energy Accelerator Research Organization | 68 |
2 |
| JX Nippon Mining & Metals Corporation | 1454 |
2 |
| Other owners | 55 |