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WENJUAN DU

Overview
  • Total Patents
    17
About

WENJUAN DU has a total of 17 patent applications. Its first patent ever was published in 2009. It filed its patents most often in China. Its main competitors in its focus markets environmental technology are KAIDA ELECTRON CO LTD JINNAN T, MINAMIGUMI KK and GONCHAROV VIKTOR VIKTOROVICH.

Patent filings in countries

World map showing WENJUAN DUs patent filings in countries
# Country Total Patents
#1 China 17

Patent filings per year

Chart showing WENJUAN DUs patent filings per year from 1900 to 2020

Focus industries

Focus technologies

Top inventors

# Name Total Patents
#1 Wenjuan Du 17

Latest patents

Publication Filing date Title
CN102767859A Range hood capable of removing oil smoke at top of kitchen and using method thereof
CN102619453A Invisible protection window combined by U-shaped steel wires and production method thereof
CN102616632A Common elevator for two multi-storey residential buildings and method for using common elevator
CN102535414A Ice salvaging boat capable of running upstream by utilizing natural force and use method thereof
CN102561284A Hydrofoil wheel unit aided ice collector and method for using same
CN102467052A Structure for removing harmful particles of laser printer
CN102251452A Method for usage of municipal bicycle power-assisted channel
CN102220788A Method of building structure using atomized cooling external wall
CN102444220A Outer wall body structure provided with heat insulation break bridge exterior wall tile
CN102220787A Cooling and heat insulating method for external wall by using passage-type external wall building structure
CN102173476A Method for making ice and desalinating sea water by using beach, tide and cold
CN102442743A Facility for making ice to desalinize and preparing salt by utilizing natural resources
CN102102449A Bedroom folded in wardrobes and using method thereof
CN102486179A Natural wind simulating electric fan and utilization method thereof
CN102011741A Electric fan capable of generating disordered natural wind and use method thereof
CN101818376A Device and method for preparing graphite single-chips
CN101632560A Electrical kettle bottom structure and producing device and method thereof