- 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 28/16 - Shoulder or burr prevention
Patent holdings for IPC class B21D 28/16
Total number of patents in this class: 142
10-year publication summary
14
|
17
|
12
|
11
|
12
|
9
|
7
|
5
|
10
|
0
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Feintool International Holding AG | 113 |
14 |
Nippon Steel Corporation | 5649 |
14 |
Robert Bosch GmbH | 40953 |
13 |
TRUMPF Werkzeugmaschinen GmbH + Co. KG | 585 |
5 |
Lapmaster Wolters GmbH | 41 |
4 |
NHK Spring Co., Ltd. | 1657 |
4 |
ZF Friedrichshafen AG | 6820 |
3 |
Guangdong Oppo Mobile Telecommunications Corp., Ltd. | 18739 |
3 |
Kuroda Precision Industries Ltd. | 103 |
3 |
Nippon Steel & Sumitomo Metal Corporation | 1990 |
3 |
Toyota Boshoku Kabushiki Kaisha | 1304 |
3 |
Honda Motor Co., Ltd. | 24537 |
2 |
Centre Technique des Industries Mecaniques | 71 |
2 |
Hugo Benzing GmbH & Co. KG | 23 |
2 |
Inter-University Research Institute Corporation High Energy Accelerator Research Organization | 62 |
2 |
JX Nippon Mining & Metals Corporation | 1576 |
2 |
Komatsu Seiki Kosakusho Co., Ltd. | 12 |
2 |
Murata Machinery, Ltd. | 1386 |
2 |
National Institute for Materials Science | 1108 |
2 |
Nisshin Steel Co., Ltd. | 401 |
2 |
Other owners | 55 |