- 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 28/28 - Perforating, i.e. punching holes in tubes or other hollow bodies
Patent holdings for IPC class B21D 28/28
Total number of patents in this class: 94
10-year publication summary
|
8
|
3
|
10
|
10
|
8
|
6
|
7
|
7
|
9
|
4
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Talgø Teknologi AS | 8 |
5 |
| GM Global Technology Operations LLC | 13620 |
4 |
| Daimler AG | 3462 |
4 |
| Crown Packaging Technology, Inc. | 494 |
4 |
| Magna International Inc. | 1236 |
4 |
| NSK Ltd. | 2719 |
3 |
| Shoham Machinery Ltd. | 3 |
3 |
| Bayerische Motoren Werke Aktiengesellschaft | 13126 |
2 |
| AIL International Inc. | 65 |
2 |
| Bose Corporation | 2880 |
2 |
| Gi. Di. Meccanica S.p.A. | 2 |
2 |
| Matsumoto Heavy Industry Co., Ltd. | 7 |
2 |
| Modine Manufacturing Company | 305 |
2 |
| Nippon Steel Corporation | 5649 |
2 |
| Vari-Form Inc. | 4 |
2 |
| Zhongshan OMS Industrial Co., Ltd. | 4 |
2 |
| Inno-Spin LLC | 13 |
2 |
| Suzhou Uigreen Micro&nano Technology Co. Ltd. | 12 |
2 |
| Benteler Steel/Tube GmbH | 37 |
2 |
| Toyota Motor Corporation | 28582 |
1 |
| Other owners | 42 |