- All sections
- B - Performing operationstransporting
- B21D - Working or processing of sheet metal or metal tubes, rods or profiles without essentially removing materialpunching metal
- B21D 28/22 - Notching the peripheries of circular blanks, e.g. laminations for dynamo-electric machines
Patent holdings for IPC class B21D 28/22
Total number of patents in this class: 68
10-year publication summary
|
3
|
6
|
2
|
11
|
8
|
5
|
5
|
4
|
6
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Robert Bosch GmbH | 42826 |
13 |
| Mitsui High-tec, Inc. | 264 |
11 |
| HSF Automation GmbH | 9 |
5 |
| Corrada S.p.A. | 21 |
4 |
| Ernesto Malvestiti S.p.A. | 14 |
3 |
| Toyota Motor Corporation | 33015 |
2 |
| Panasonic Corporation | 20030 |
2 |
| Feintool International Holding AG | 97 |
2 |
| JFE Steel Corporation | 6974 |
2 |
| Toyota Boshoku Kabushiki Kaisha | 1428 |
2 |
| Voestalpine Stahl GmbH | 362 |
2 |
| Siemens Gamesa Renewable Energy A/S | 1900 |
2 |
| GM Global Technology Operations LLC | 15192 |
1 |
| Ford Global Technologies, LLC | 20755 |
1 |
| Nissan Motor Co., Ltd. | 12572 |
1 |
| Schaeffler Technologies AG & Co. KG | 10035 |
1 |
| Board of Regents, The University of Texas System | 5884 |
1 |
| AIDA Engineering, Ltd. | 135 |
1 |
| Ged Integrated Solutions, Inc. | 122 |
1 |
| IPG Photonics Corporation | 545 |
1 |
| Other owners | 10 |