- All sections
- B - Performing operationstransporting
- B21D - Working or processing of sheet metal or metal tubes, rods or profiles without essentially removing materialpunching metal
- B21D 28/02 - Punching blanks or articles with or without obtaining scrapNotching
Patent holdings for IPC class B21D 28/02
Total number of patents in this class: 322
10-year publication summary
|
18
|
26
|
38
|
36
|
33
|
15
|
23
|
27
|
20
|
27
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsui High-tec, Inc. | 263 |
25 |
| JFE Steel Corporation | 6916 |
21 |
| Nippon Steel Corporation | 6334 |
16 |
| TRUMPF Werkzeugmaschinen GmbH + Co. KG | 542 |
11 |
| Kuroda Precision Industries Ltd. | 112 |
8 |
| Feintool International Holding AG | 97 |
7 |
| NHK Spring Co., Ltd. | 1879 |
7 |
| ThyssenKrupp Steel Europe AG | 959 |
6 |
| Robert Bosch GmbH | 42813 |
5 |
| Nidec Corporation | 2670 |
5 |
| Toyota Motor Corporation | 32788 |
4 |
| Kabushiki Kaisha F.C.C. | 373 |
4 |
| ThyssenKrupp AG | 3308 |
4 |
| POSCO Mobility Solution Corporation | 11 |
4 |
| Honda Motor Co., Ltd. | 25425 |
3 |
| NTN Corporation | 4970 |
3 |
| Contemporary Amperex Technology Co., Limited | 7083 |
3 |
| Heinrich Georg GmbH Maschinenfabrik | 20 |
3 |
| Hoden Seimitsu Kako Kenkyusho Co., Ltd. | 40 |
3 |
| Lapmaster Wolters GmbH | 36 |
3 |
| Other owners | 177 |