- All sections
- B - Performing operationstransporting
- B23H - Working of metal by the action of a high concentration of electric current on a workpiece using an electrode which takes the place of a toolsuch working combined with other forms of working of metal
- B23H 9/18 - Producing external conical surfaces or spikes
Patent holdings for IPC class B23H 9/18
Total number of patents in this class: 1
10-year publication summary
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0
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0
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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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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| City University of Hong Kong | 926 |
1 |
| Other owners | 0 |