Learn more

DU LEI

Overview
  • Total Patents
    30
  • GoodIP Patent Rank
    140,015
  • Filing trend
    ⇩ 33.0%
About

DU LEI has a total of 30 patent applications. It decreased the IP activity by 33.0%. Its first patent ever was published in 2006. It filed its patents most often in United States and China. Its main competitors in its focus markets telecommunications, pharmaceuticals and environmental technology are GUO XIAOLONG, QIAN LIJUN and LEE JOHN C.

Patent filings in countries

World map showing DU LEIs patent filings in countries
# Country Total Patents
#1 United States 17
#2 China 13

Patent filings per year

Chart showing DU LEIs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Du Lei 26
#2 Chen Lan 6
#3 Huang Min 3
#4 Bai Yong 3
#5 Kayama Hidetoshi 3
#6 Yi Gangshan 2
#7 Teng Yong 2
#8 Liu Bairen 2
#9 You Hongyun 2
#10 Shen Chanhua 2

Latest patents

Publication Filing date Title
CN111820700A Hidden rotary suspension type clothes hanger
CN111172897A Reinforcing method of hollow slab beam bridge
CN109646620A Dispel halitosis formula
CN109019713A The method of service ship and ballast water treatment, sanitary sewage disposal and waste gas monitoring
CN110557854A Copper alloy manufacturing equipment adopting photoelectronic device and photoelectrons
CN107447685A A kind of longitudinal prestressing reinforcement means of Hollow Slab Beam Bridge
CN109027638A A kind of multi-angle regulation camera support in industrial production line
CN108991759A A kind of Intelligent clothes cabinet of adjustable region size
CN105998636A Composite medicament used for turning white hair into black and preparation method thereof
CN105770430A External-application medicine for blackening gray hair and preparation method thereof
CN105767031A General disinfectant for supply room and preparation method thereof
CN104720712A Multifunctional automatic dish brushing machine
US2015195831A1 Data transmission
US2014120916A1 Handover of a device with coexisting radios
US2013272190A1 Dynamic Configuration of Relay Nodes in a Cellular Communication System
US2012220214A1 Method and apparatus for provision of paging messages in relay network