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LI YAJUAN

Overview
  • Total Patents
    21
  • GoodIP Patent Rank
    91,636
  • Filing trend
    ⇩ 100.0%
About

LI YAJUAN has a total of 21 patent applications. It decreased the IP activity by 100.0%. Its first patent ever was published in 2001. It filed its patents most often in China and United States. Its main competitors in its focus markets chemical engineering, pharmaceuticals and electrical machinery and energy are INSTITUTUL NAT DE CERCETARE DEZVOLTARE PENTRU STIINTE BIOLOGICE, TORF CORP FABRYKA LEKOW SP Z O and UNIV POLITECNICA DELLE MARCHE.

Patent filings in countries

World map showing LI YAJUANs patent filings in countries
# Country Total Patents
#1 China 20
#2 United States 1

Patent filings per year

Chart showing LI YAJUANs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Li Yajuan 19
#2 Zhu Hongbo 5
#3 Wu Yuchun 1
#4 The Inventor Has Waived The Right To Be Cited 1
#5 Chang Junren 1

Latest patents

Publication Filing date Title
CN111939242A Traditional Chinese medicine preparation for treating diarrhea-predominant irritable bowel syndrome and preparation method thereof
CN111840462A Traditional Chinese medicine composition for relieving asthenopia and preparation method thereof
CN107994376A Fast dismounting arrangements of electric connection
CN107809023A Electrical connector and electric connecting sleeve
CN107978873A Arrangements of electric connection
CN109835239A The dump truck of buildup can actively be removed
CN109835240A Dumper
CN107985159A The dumper of buildup can actively be removed
CN107985161A The slag-soil truck of buildup can actively be removed
CN107914623A Body dump
CN105597396A Intelligent solid-liquid separating device
CN105536327A Filtering device
CN105688480A Solid-liquid separation device
CN105749604A Filter device capable of being automatically cleaned
CN105771366A Solid-liquid separating device with automatic cleaning
CN105641994A Automatic washing and filtering apparatus
CN105688481A Solid-liquid separation device with intelligent cleaning function
CN105771365A Intelligent cleaning filtering device
CN1370507A Cranial bone implant of hydroxyapatite
CN1370508A Cranial bone implant of hydroxyapatite sprayed biological titanium