Learn more

WEI DU

Overview
  • Total Patents
    15
About

WEI DU has a total of 15 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 are KUTSUKAKE YURIKO, SHIBANO TOMIKO and YUREV BORIS T.

Patent filings in countries

World map showing WEI DUs patent filings in countries
# Country Total Patents
#1 China 15

Patent filings per year

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

Focus industries

Focus technologies

Top inventors

# Name Total Patents
#1 Wei Du 8
#2 Du Wei 4
#3 Wei Dou 3
#4 Zhenhong Song 3
#5 Rubo Zhao 3
#6 Wen Cui 1
#7 Weichuang Dan 1
#8 Tianlu Cao 1

Latest patents

Publication Filing date Title
CN102633541A Preparation method of special organic fertilizer for organic farms
CN102633542A Method for preparing high-concentration organic fertilizer special for organic farms
CN102490833A Bicycle enabling users to look after baby conveniently
CN101993259A Active ecological organic fertilizer
CN101990990A Chinese herbal medicine additive for livestock and poultry
CN101928158A Organic ecological active nutrient solution
CN101372134A Method for producing reclaimed sand for building
CN100998604A Traditional Chinese medicine for treat burns and scald and its preparing method
CN101088694A Multi-layer composite material producing process and apparatus
CN1800602A Engine controller and control method thereof
CN1194871A Electrotherapeutic apparatus for mouth cavity and treating medicine thereof
CN1159953A Medicine transferring ion electric therapeutic apparatus and therapy medicine thereof
CN1155429A Medicine for acne and its preparation
CN1137930A Electrotherapeutic apparatus and preparation method of its therapeutic medicine
CN1115324A Light weight asbestos-free high temp. resistance and heat insulation paint