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LIU CHUNQING

Overview
  • Total Patents
    47
  • GoodIP Patent Rank
    234,417
About

LIU CHUNQING has a total of 47 patent applications. Its first patent ever was published in 2006. It filed its patents most often in United States, WIPO (World Intellectual Property Organization) and China. Its main competitors in its focus markets chemical engineering, environmental technology and macromolecular chemistry and polymers are PARKER FILTRATION B V, EVONIK FIBRES GMBH and WANCHENG ENV PROT TECH CO LTD.

Patent filings in countries

World map showing LIU CHUNQINGs patent filings in countries

Patent filings per year

Chart showing LIU CHUNQINGs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Liu Chunqing 47
#2 Wilson Stephen T 24
#3 Tang Man-Wing 17
#4 Lesch David A 15
#5 Minkov Raisa 13
#6 Zhou Lubo 13
#7 Faheem Syed A 8
#8 Serbayeva Raisa 7
#9 Bricker Jeffery C 4
#10 Osman Zara 4

Latest patents

Publication Filing date Title
CN104721900A Novel portable gastrointestinal lavage system
US2012157743A1 Membrane system for natural gas upgrading
US2012322911A1 Polyimide gas separation membranes
US2012322119A1 Separation process using a polyimide membrane
US2012323059A1 Process of separating gases using polyimide membranes
US2012322646A1 Blend polymer gas separation membrane
US2012240763A1 Microporous UZM-5 inorganic zeolite membranes for gas, vapor, and liquid separations
US2011072973A1 Polybenzoxazole membranes
US2011077312A1 Method to improve the selectivity of polybenzoxazole membranes
US2010331437A1 Polybenzoxazole membranes prepared from aromatic polyamide membranes
US2010311565A1 Microporous aluminophosphate molecular sieve membranes for highly selective separations
US2011316181A1 Process of making asymmetric polybenzoxazole membranes
WO2010110986A2 Polybenzoxazole polymer-based mixed matrix membranes
US2010133188A1 Polybenzoxazole Membranes Prepared From Aromatic Polyamide Membranes
US2010137124A1 High performance cross-linked polybenzoxazole and polybenzothiazole polymer membranes
US2010133186A1 High performance cross-linked polybenzoxazole and polybenzothiazole polymer membranes
US2010243567A1 Polymer membranes derived from aromatic polyimide membranes
US2010242723A1 Blend polymer membranes comprising thermally rearranged polymers derived from aromatic polyimides containing ortho-positioned functional groups
US2010133187A1 Polybenzoxazole polymer-based mixed matrix membranes
US2010133192A1 Polymer membranes prepared from aromatic polyimide membranes by thermal treating and UV crosslinking