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HAN DINGNAN

Overview
  • Total Patents
    25
  • GoodIP Patent Rank
    222,747
About

HAN DINGNAN has a total of 25 patent applications. Its first patent ever was published in 2009. It filed its patents most often in China, Canada and United States. Its main competitors in its focus markets computer technology are ISHIKURA HIROSHI, IZP BEIJING TECHNOLOGY CO LTD and SYSTEM LSI KK.

Patent filings per year

Chart showing HAN DINGNANs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Computer technology

Focus technologies

Top inventors

# Name Total Patents
#1 Han Dingnan 25

Latest patents

Publication Filing date Title
CN112230839A Multi-touch tool environment intelligent interaction
CN111324229A Multi-person mixed office handwriting pen system
CN103809875A Human-computer interaction method and human-computer interaction interface
CN102812426A Method And Interface For Man-machine Interaction
CA2753447A1 Multi-point touch screen operating tool
WO2009103219A1 Multi-point touch screen and touch detecting method