- 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 53/20 - Making other particular articles rings, e.g. barrel hoops washers, e.g. for sealing
Patent holdings for IPC class B21D 53/20
Total number of patents in this class: 25
10-year publication summary
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0
|
4
|
3
|
4
|
3
|
3
|
0
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0
|
1
|
0
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| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Taiho Kogyo Co., Ltd. | 341 |
11 |
| Dynamic Metals, LLC | 6 |
2 |
| Umicore AG & Co. KG | 867 |
2 |
| The Boeing Company | 19843 |
1 |
| Caterpillar Inc. | 8877 |
1 |
| NSK Ltd. | 2719 |
1 |
| ABB Technology AG | 1301 |
1 |
| Applied Bolting Technology Products, Inc. | 6 |
1 |
| CommScope Technologies LLC | 4937 |
1 |
| Federal-Mogul Sealing Systems GmbH | 77 |
1 |
| HANEX Co., Ltd. | 4 |
1 |
| Nord-Lock AB | 17 |
1 |
| Tech Stell Co., Ltd. | 7 |
1 |
| Other owners | 0 |