Inventor · Schaumburg, IL, US

Chunqing Liu

108Patents
12h-index
61Co-inventors
89Inventor score

Filing activity: Jul 14, 2000 → Mar 7, 2024

Most-cited inventions

PatentTitleAreaCited byStatus
US7410525B1 Mixed matrix membranes incorporating microporous polymers as fillers Emerging Cross-Sectional Technologies 98 Expired
US8127937B2 High performance cross-linked polybenzoxazole and polybenzothiazole polymer membranes Emerging Cross-Sectional Technologies 77 Active
US8127936B2 High performance cross-linked polybenzoxazole and polybenzothiazole polymer membranes Performing Operations; Transporting 76 Active
US7637983B1 Metal organic framework—polymer mixed matrix membranes Performing Operations; Transporting 47 Active
US7485173B1 Cross-linkable and cross-linked mixed matrix membranes and methods of making the same Emerging Cross-Sectional Technologies 43 Active
US7758751B1 UV-cross-linked membranes from polymers of intrinsic microporosity for liquid separations Performing Operations; Transporting 28 Active
US7943543B1 Ionic liquid-solid-polymer mixed matrix membranes for gas separations Emerging Cross-Sectional Technologies 26 Active
US8337598B2 Photo-crosslinked gas selective membranes as part of thin film composite hollow fiber membranes Emerging Cross-Sectional Technologies 25 Active
US8132677B2 Polymer membranes prepared from aromatic polyimide membranes by thermal treating and UV crosslinking Emerging Cross-Sectional Technologies 18 Active
US8366804B2 High permeance polyimide membranes for air separation Emerging Cross-Sectional Technologies 17 Active
US8561812B2 Blend polymer membranes comprising thermally rearranged polymers derived from aromatic polyimides containing ortho-positioned functional groups Chemistry; Metallurgy 15 Active
US8575414B2 Membrane system for natural gas upgrading Emerging Cross-Sectional Technologies 15 Active
US8613362B2 Polymer membranes derived from aromatic polyimide membranes Emerging Cross-Sectional Technologies 11 Active
US8048198B2 High performance mixed matrix membranes incorporating at least two kinds of molecular sieves Performing Operations; Transporting 10 Active
US8132678B2 Polybenzoxazole polymer-based mixed matrix membranes Emerging Cross-Sectional Technologies 9 Active
US7806962B2 Cross-linkable and cross-linked mixed matrix membranes and methods of making the same Emerging Cross-Sectional Technologies 9 Active
US8912288B2 Separation process using a polyimide membrane Emerging Cross-Sectional Technologies 9 Active
US6423772B1 Organo-bridged ladderlike polysiloxane, tube-like organosilicon polymers, complexes thereof, and the method for producing the same Chemistry; Metallurgy 8 Expired
US8016124B2 Thin film gas separation membranes Emerging Cross-Sectional Technologies 7 Active
US9126154B2 High hydrocarbon resistant chemically cross-linked aromatic polyimide membrane for separations Emerging Cross-Sectional Technologies 7 Active
US9126152B2 Polybenzoxazole membranes from self-cross-linkable aromatic polyimide membranes Performing Operations; Transporting 7 Active
US8814982B2 Tetrazole functionalized polymer membranes Emerging Cross-Sectional Technologies 7 Active
US7846496B2 Mixed matrix membranes incorporating surface-functionalized molecular sieve nanoparticles and methods for making the same Emerging Cross-Sectional Technologies 7 Active
US9211508B2 Polybenzoxazole membranes from self-cross-linkable aromatic polyimide membranes Performing Operations; Transporting 7 Active
US9238202B2 Gas separation membranes from chemically and UV treated polymers of intrinsic microporosity Emerging Cross-Sectional Technologies 7 Active

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.