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LIU YONG-HAN

Overview
  • Total Patents
    12
About

LIU YONG-HAN has a total of 12 patent applications. Its first patent ever was published in 2003. It filed its patents most often in Taiwan and Japan. Its main competitors in its focus markets electrical machinery and energy, basic communication technologies and machines are SHAO JINZE, CIRCUIT RES COMPANY and STATOMAT SPEZIALMASCHINEN.

Patent filings in countries

World map showing LIU YONG-HANs patent filings in countries
# Country Total Patents
#1 Taiwan 11
#2 Japan 1

Patent filings per year

Chart showing LIU YONG-HANs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Liu Yong-Han 12

Latest patents

Publication Filing date Title
TW201102500A Power mechanism utilizing location arrangement of magnetic force
TW200909677A Device for producing propulsion by arrangement of magnetic attraction/repulsion forces
TW200838789A Contactless control switch for elevator
TW200835853A Magnetic force driving device
TW200811365A Prime mover
TW200801330A Prime motive machine free of energy
TW200700257A System for long distance vehicle trailing
TWI227700B Magnetic type vacuum document delivering system
TW200511353A Method to prevent knife switch from generating back-emf spark
TW200506241A Non-contact wheel-type transmitting device