Learn more

CHANGCHUN HAIPURUNSI TECH CO LTD

Overview
  • Total Patents
    461
  • GoodIP Patent Rank
    3,263
  • Filing trend
    ⇧ 61.0%
About

CHANGCHUN HAIPURUNSI TECH CO LTD has a total of 461 patent applications. It increased the IP activity by 61.0%. Its first patent ever was published in 2016. It filed its patents most often in China. Its main competitors in its focus markets organic fine chemistry, semiconductors and basic materials chemistry are NINGBO LUMILAN NEW MAT CO LTD, BEIJING YANHUA JILIAN OPTOELECTRONIC TECH CO LTD and BEIJING ETERNAL MAT TECH CO LTD.

Patent filings in countries

World map showing CHANGCHUN HAIPURUNSI TECH CO LTDs patent filings in countries
# Country Total Patents
#1 China 461

Patent filings per year

Chart showing CHANGCHUN HAIPURUNSI TECH CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Cai Hui 376
#2 Dong Xiuqin 74
#3 Sun Keyi 73
#4 Liu Xiqing 63
#5 Zhang Hong 61
#6 Zhou Wenting 59
#7 Han Chunxue 57
#8 Du Mingzhu 27
#9 Sun Jing 25
#10 Guo Jianhua 22

Latest patents

Publication Filing date Title
CN111892587A Heterocyclic organic compound and organic light-emitting device thereof
CN111892531A Organic compound and organic electroluminescent device thereof
CN111892586A Benzo five-membered N-containing heterocyclic heteroaryl amine compound and organic electroluminescent device thereof
CN111848493A Derivative containing spirobifluorene and organic electroluminescent device thereof
CN111969120A Organic electroluminescent device containing fluorene derivative
CN111960953A Arylamine compound containing fluorene and organic electroluminescent device thereof
CN111952480A Photochromic conversion film and luminescent device thereof
CN111943902A Triarylamine compound and organic light-emitting device thereof
CN111875580A Dibenzothiophene derivative and organic light-emitting device thereof
CN111933818A Organic light-emitting device
CN111777602A Carbazole-containing compound and organic electroluminescent device thereof
CN111875608A Seven-membered nitrogen-containing heterocyclic derivative and organic electroluminescent device thereof
CN111808042A Triarylamine compound and organic electroluminescent device thereof
CN111848414A Arylamine compound and organic electroluminescent device comprising same
CN111747963A Aromatic amine compound and organic light-emitting device thereof
CN111675713A Arylamine compound and organic light-emitting device thereof
CN111785849A Top-emitting organic electroluminescent device with covering layer
CN111747938A Arylamine compound and organic electroluminescent device thereof
CN111635384A Arylamine organic compound and organic light-emitting device thereof
CN111635410A Compound and organic electroluminescent device containing same