- 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 53/28 - Making other particular articles wheels or the like gear wheels
Patent holdings for IPC class B21D 53/28
Total number of patents in this class: 133
10-year publication summary
|
13
|
10
|
14
|
6
|
7
|
3
|
3
|
5
|
2
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Aisin AW Co., Ltd. | 2430 |
13 |
| Ernst Grob AG | 22 |
8 |
| Magna Powertrain Inc. | 120 |
8 |
| Feintool International Holding AG | 113 |
6 |
| WEBO Werkzeugbau Oberschwaben GmbH | 14 |
5 |
| ZF Friedrichshafen AG | 6820 |
4 |
| JTEKT Corporation | 2423 |
4 |
| American Axle & Manufacturing, Inc. | 649 |
3 |
| Nippon Steel Corporation | 5649 |
3 |
| Metal Forming & Coining, LLC | 18 |
3 |
| Toyota Motor Corporation | 28582 |
2 |
| The Boeing Company | 19843 |
2 |
| Daimler AG | 3462 |
2 |
| Schaeffler Technologies AG & Co. KG | 8880 |
2 |
| Gates Corporation | 1182 |
2 |
| Harmonic Drive Systems Inc. | 465 |
2 |
| Magna Powertrain of America, Inc. | 91 |
2 |
| Metal Forming & Coining Corporation | 6 |
2 |
| Nippon Steel & Sumitomo Metal Corporation | 1990 |
2 |
| NPC Robotics Corporation | 11 |
2 |
| Other owners | 56 |