- All sections
- B - Performing operations; transporting
- B21L - Making metal chains
- B21L 19/00 - Appurtenances for chain-making not restricted to any particular process
Patent holdings for IPC class B21L 19/00
Total number of patents in this class: 3
10-year publication summary
|
0
|
1
|
1
|
0
|
0
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0
|
1
|
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
|
|---|---|---|
| Kaynemaile Limited | 5 |
1 |
| Poul Chang Metal Industry Co., Ltd. | 14 |
1 |
| Suzhou Chunmeng Intelligent Technology Co., Ltd | 9 |
1 |
| Other owners | 0 |