Fengming QIN

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Patents Grantslast 30 patents

Information Patent Grant
High-rotational speed cup-shaped grinding wheel
- Patent number 12,220,789
- Issue date Feb 11, 2025
- GUILIN CHAMPION UNION DIAMOND CO., LTD.
- Jingxin Song
- B24 - GRINDING POLISHING

Patents Applicationslast 30 patents

Information Patent Application
COOLING STRUCTURE OF HIGH-SPEED CUP-SHAPED WHEEL
- Publication number 20230294245
- Publication date Sep 21, 2023
- GUILIN CHAMPION UNION DIAMOND CO., LTD.
- Jingxin SONG
- B24 - GRINDING POLISHING
Information Patent Application
HIGH-ROTATIONAL SPEED CUP-SHAPED GRINDING WHEEL
- Publication number 20230166383
- Publication date Jun 1, 2023
- GUILIN CHAMPION UNION DIAMOND CO., LTD.
- Jingxin SONG
- B24 - GRINDING POLISHING