- 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 9/04 - Treating surfaces of rolls
Patent holdings for IPC class B23H 9/04
Total number of patents in this class: 12
10-year publication summary
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1
|
0
|
0
|
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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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
|
|---|---|---|
| Sarclad Limited | 17 |
7 |
| Obschestvo S Ogranichennoy Otvetstvennostju "darsail-asp" | 5 |
3 |
| H. Kleinknecht & Co. GmbH | 1 |
1 |
| Shintoku Corporation | 2 |
1 |
| Other owners | 0 |