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WU CHANGDE

Overview
  • Total Patents
    25
  • GoodIP Patent Rank
    236,890
About

WU CHANGDE has a total of 25 patent applications. Its first patent ever was published in 1994. It filed its patents most often in China. Its main competitors in its focus markets environmental technology and medical technology are HENGYANG ZHONGWEI TECHNOLOGY DEV CO LTD, DNK CO LTD and NANNING XIZHEN ELECTRONIC TECHNOLOGY DEV CO LTD.

Patent filings in countries

World map showing WU CHANGDEs patent filings in countries
# Country Total Patents
#1 China 25

Patent filings per year

Chart showing WU CHANGDEs patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Wu Changde 24
#2 Changde Wu 1

Latest patents

Publication Filing date Title
CN111643800A Rhinitis treatment device
CN103259884A Mobile phone with battery lock
CN103248039A Method for preventing system impact after single-phase earth fault arc extinction
CN103244783A Turning joint of drain pipe of washer
CN103182999A Method for preventing vehicle from overturning
CN103187747A Public charging device with electronic lock
CN103187749A Gaugeable public charging system with electronic lock
CN103187748A Charging device with watt hour meter
CN103185444A Transparent refrigerator
CN103185436A Refrigerator with transparent visual window
CN102845986A A smart credit card storage management box
CN102852361A Efficient parking lot in building
CN102854894A Method for tracking irradiation direction of sunlight by using photovoltaic cell
CN102854896A Method for tracking irradiation direction of sunlight
CN102854895A Method for tracking irradiation direction of sunlight
CN102854893A Device for tracking sunlight irradiation direction
CN102854889A Method for tracking irradiation direction of sunlight by using photovoltaic cell
CN102852365A High-efficiency parking lot
CN102839526A Electric heating trouser drying frame
CN102837879A Tetra Pak pillow packaging bag with diversion nozzle