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QINGDAO WENCHUANG TECH CO LTD

Overview
  • Total Patents
    557
  • GoodIP Patent Rank
    3,802
About

QINGDAO WENCHUANG TECH CO LTD has a total of 557 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 basic materials chemistry, foods and drinks and chemical engineering are NANJING KOPA SYS TECH CO LTD, XUAN WEI and ZHANG BIN.

Patent filings in countries

World map showing QINGDAO WENCHUANG TECH CO LTDs patent filings in countries
# Country Total Patents
#1 China 557

Patent filings per year

Chart showing QINGDAO WENCHUANG TECH CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Su Jianli 533
#2 Zhao Yonghai 9
#3 Li Jinfeng 5
#4 Jinfeng Li 2
#5 Liu Lianhe 2
#6 Zhang Yinxiang 1
#7 Zhang Zongyou 1
#8 Zhang Ligang 1
#9 Cui Chunwei 1
#10 Chen Yunpeng 1

Latest patents

Publication Filing date Title
CN106350027A Chemical thermal bag
CN106344255A Chemical heating bag
CN106350025A Calcium chloride hexahydrate chemical ice bag and preparing method thereof
CN106381130A Sodium acetate trihydrate chemical ice bag and preparation method thereof
CN106467719A A kind of six water calcium bromide chemical cold bags and preparation method thereof
CN106244120A A kind of disodium hydrogen phosphate chemical cold bag and preparation method thereof
CN106350024A Zinc nitrate hexahydrate chemical ice bag and preparing method thereof
CN106367038A Chemical thermal bag
CN106299278A A kind of ferrum magnesium ashbury metal lithium ion battery negative material
CN106333784A Lithium nitrate trihydrate chemical ice bag and preparation method thereof
CN106350023A Dodecahydrate dicalcium phosphate chemical ice bag and preparing method thereof
CN106369906A Chemical ammonium alum ice bag and preparation method thereof
CN106229497A A kind of aluminum CoSn alloy lithium ion battery negative material
CN106367037A Chemical heating bag with long continuous time
CN106350026A Slow heating chemical htting bag
CN106229496A A kind of ferrum Zinc-tin alloy lithium ion battery negative material
CN106467718A A kind of four water potassium fluoride chemical cold bags and preparation method thereof
CN106350839A A negative materials for copper - tin - titanium alloy lithium - ion batteries
CN106229504A A kind of adonic lithium ion battery negative material
CN106568258A Sodium sulfate decahydrate chemical ice bag and preparation method thereof