- All sections
- B - Performing operationstransporting
- B21L - Making metal chains
- B21L 3/02 - Machines or devices for welding chain links
Patent holdings for IPC class B21L 3/02
Total number of patents in this class: 3
10-year publication summary
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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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1
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1
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1
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1
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0
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sisma S.p.A. | 55 |
1 |
| Marco Bicego S.p.A. | 18 |
1 |
| PEWAG engineering GmbH | 2 |
1 |
| Other owners | 0 |