- All sections
- B - Performing operations; transporting
- B21F - Working or processing of metal wire
- B21F 37/04 - Manufacture of rings from wire of washers
Patent holdings for IPC class B21F 37/04
Total number of patents in this class: 5
10-year publication summary
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0
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1
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1
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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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0
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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
|
|---|---|---|
| Adolf Schnorr GmbH & Co. KG | 11 |
2 |
| Schaeffler Technologies AG & Co. KG | 8880 |
1 |
| Saint-Gobain Performance Plastics Corporation | 1028 |
1 |
| Taiho Kogyo Co., Ltd. | 341 |
1 |
| Other owners | 0 |