Inventor

WU DENGWU

CN3 patents

Patents

3 patents

US12064988B1Aug 20, 2024

Connectable marker pens

SHENZHEN THOUSANDSHORES TECH CO LTD4 citations71

US12473444B2Nov 18, 2025

Marker inks and methods for preparing thereof

SHENZHEN THOUSANDSHORES TECH CO LTD0 citations58

US12435227B2Oct 7, 2025

Marker inks and methods of preparing the marker inks

SHENZHEN THOUSANDSHORES TECH CO LTD0 citations58