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Patents Grantslast 30 patents

Information Patent Grant
Self-made LED luminous floating oil filling pen
- Patent number 11,345,181
- Issue date May 31, 2022
- Yougen Kong
- F21 - LIGHTING

Patents Applicationslast 30 patents

Information Patent Application
SELF-MADE LED LUMINOUS FLOATING OIL FILLING PEN
- Publication number 20220184997
- Publication date Jun 16, 2022
- Shenzhen Wingart Art Supplies Co,.Ltd.
- Yougen Kong
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES