- All sections
- B - Performing operationstransporting
- B21D - Working or processing of sheet metal or metal tubes, rods or profiles without essentially removing materialpunching metal
- B21D 28/30 - Perforating, i.e. punching holes in annular parts, e.g. rims
Patent holdings for IPC class B21D 28/30
Total number of patents in this class: 14
10-year publication summary
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0
|
3
|
0
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0
|
1
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0
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0
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0
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0
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1
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| A.k. Stamping Company, Inc. | 39 |
3 |
| TOYOTA JIDOSHA KABUSHIKI KAISHA (also trading as TOYOTA MOTOR CORPORATION) | 12765 |
2 |
| Aisin Takaoka Co., Ltd. | 97 |
1 |
| NTN Corporation | 4973 |
1 |
| AB SKF | 156 |
1 |
| Ball Corporation | 386 |
1 |
| CITIC Dicastal CO., LTD | 560 |
1 |
| Ged Integrated Solutions, Inc. | 123 |
1 |
| Holland Mechanics B.V. | 4 |
1 |
| Steel Strips Wheels Limited | 2 |
1 |
| Gustav Meyer Stanztechnik GmbH & Co. KG | 1 |
1 |
| Other owners | 0 |