Minmin Zhang

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Hangzhou, CN

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Patents Grantslast 30 patents

Information Patent Grant
Graphene electrostatic filtering device
- Patent number 12,312,258
- Issue date May 27, 2025
- HANGZHOU COOLKIND BOAT TECHNOLOGY CO., LTD.
- Ji Han
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

Patents Applicationslast 30 patents

Information Patent Application
FLOATING OBJECT CLEANUP DEVICE
- Publication number 20250187707
- Publication date Jun 12, 2025
- Hangzhou Coolkind Boat Technology Co., Ltd.
- Ji Han
- B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT