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LI GUANFENG

Overview
  • Total Patents
    11
  • GoodIP Patent Rank
    196,437
About

LI GUANFENG has a total of 11 patent applications. Its first patent ever was published in 2004. It filed its patents most often in China and United States. Its main competitors in its focus markets computer technology, measurement and medical technology are Shandong university of finance and economics, OSENSE TECH CO LTD and JIYI ROBOT SHANGHAI CO LTD.

Patent filings in countries

World map showing LI GUANFENGs patent filings in countries
# Country Total Patents
#1 China 6
#2 United States 5

Patent filings per year

Chart showing LI GUANFENGs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Li Guanfeng 10
#2 Chang Edward Y 2
#3 Wang Feng 2
#4 Zhang Faen 2
#5 Bao Hongji 2
#6 Hou Mingming 1
#7 Chang Edward 1
#8 Li Guanfeng Hu 1
#9 Xie Yuanchun 1
#10 Liu Sha 1

Latest patents

Publication Filing date Title
CN111870490A System and method for vision training outside blurred focus and yellow spots for myopia prevention and control
CN110979475A Charging port cover plate assembly for vehicle
CN109875862A A kind of central fovea of macula therapeutic instrument for shortsightedness and its application method
CN109806122A A kind of retinal visual potential training system and its application method
CN109568804A A kind of chalazion therapeutic equipment
US2013314238A1 Hardware attitude detection implementation of mobile devices with MEMS motion sensors
US8792905B1 Location monitoring using clusters of entities
US2014113665A1 Navigating using an indoor map representation
US2014078150A1 Generating an indoor map model
CN1640998A Biological-flux diesel alcohol blended fuel