Inventor
LI YUANZHI
CN10 patents
⚠️ This page may combine multiple inventors who share the name “LI YUANZHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HANVON UGEE TECH CO LTD
6 patentsUS11714099B2Aug 1, 2023
Magnetic roller device and rotation information calculating method thereof
HANVON UGEE TECH CO LTD0 citations58
US11360922B2Jun 14, 2022
Three-in-one multimedia cable and electronic drawing board system
HANVON UGEE TECH CO LTD1 citations58
US11573650B2Feb 7, 2023
Magnetic roller damping device and implementing method thereof
HANVON UGEE TECH CO LTD0 citations47
US11360583B2Jun 14, 2022
Electromagnetic fountain pen
HANVON UGEE TECH CO LTD0 citations44
US11287906B2Mar 29, 2022
Passive electromagnetic fountain pen
HANVON UGEE TECH CO LTD0 citations44
US11256344B2Feb 22, 2022
Passive electromagnelic pen
HANVON UGEE TECH CO LTD0 citations44