- All sections
- B - Performing operationstransporting
- B21D - Working or processing of sheet metal or metal tubes, rods or profiles without essentially removing materialpunching 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: 24
10-year publication summary
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3
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4
|
3
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3
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0
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0
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1
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1
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1
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1
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Taiho Kogyo Co., Ltd. | 326 |
11 |
| A.W. Chesterton Company | 94 |
2 |
| Dynamic Metals, LLC | 6 |
2 |
| The Boeing Company | 20196 |
1 |
| Caterpillar Inc. | 10299 |
1 |
| NSK Ltd. | 2838 |
1 |
| CommScope Technologies LLC | 3250 |
1 |
| Federal-Mogul Sealing Systems GmbH | 58 |
1 |
| Nord-Lock AB | 12 |
1 |
| Umicore AG & Co. KG | 850 |
1 |
| Northvolt AB | 259 |
1 |
| Applied Bolting Technology, LLC | 27 |
1 |
| Other owners | 0 |