Inventor · Beijing, CN

Chunming Xu

28Patents
5h-index
44Co-inventors
65Inventor score

Filing activity: Oct 31, 2002 → Jul 30, 2021

Most-cited inventions

PatentTitleAreaCited byStatus
US7285698B2 Method for manufacturing alkylate oil with composite ionic liquid used as catalyst Chemistry; Metallurgy 90 Expired
US7459413B2 Catalyst composition for treating heavy feedstocks Chemistry; Metallurgy 22 Active
US7597794B2 Deep separation method and processing system for the separation of heavy oil through granulation of coupled post-extraction asphalt residue Chemistry; Metallurgy 13 Active
US9290706B2 Integrated process for upgrading heavy oil Chemistry; Metallurgy 7 Active
US8692048B2 Method for revamping an HF or sulphuric acid alkylation unit Chemistry; Metallurgy 6 Active
US6714871B1 Method for quantifying permeability of vuggy carbonates using wireline logs Physics 5 Expired
US8653318B2 Process for preparing an alkylate Chemistry; Metallurgy 4 Active
US8569561B2 Method for revamping an HF or sulphuric acid alkylation unit Emerging Cross-Sectional Technologies 4 Active
US9925532B2 Method of processing heavy oils and residua Chemistry; Metallurgy 3 Active
US8552243B2 Process for preparing an alkylate Chemistry; Metallurgy 3 Active
US9725658B2 Method of processing low-grade heavy oil Chemistry; Metallurgy 3 Active
US10822242B2 ZSM-35 molecular sieve and preparation method thereof Chemistry; Metallurgy 1 Active
US7594995B2 Catalyst composition for treating heavy feedstocks Chemistry; Metallurgy 1 Active
US9663730B2 Method for the conversion of asphaltenes to light fractions Chemistry; Metallurgy 1 Active
US11634334B2 Method of synthesizing an aluminosilicate molecular sieve by a crystal seed-assisted method Chemistry; Metallurgy 0 Active
US9346042B2 Process for regeneration of ionic liquid catalyst Emerging Cross-Sectional Technologies 0 Active
US9260668B2 Method for revamping an HF or sulphuric acid alkylation unit and method for the production of alkylate Emerging Cross-Sectional Technologies 0 Active
US8633346B2 Process for preparing an alkylate Emerging Cross-Sectional Technologies 0 Active
US10266778B2 Method for upgrading fluid catalytic cracking gasoline Chemistry; Metallurgy 0 Active
US11426702B2 Method and system for treatment of spent chloroaluminate ionic liquid catalyst and alkaline wastewater Chemistry; Metallurgy 0 Active
US9567273B2 Process for preparing alkylate comprising an improved solids removal step Emerging Cross-Sectional Technologies 0 Active
US11446633B2 Method for treating pollutants Emerging Cross-Sectional Technologies 0 Active
US9096487B2 Alkylation method using ionic liquid as catalyst Chemistry; Metallurgy 0 Active
US9683183B2 Method for deep desulfurization of gasoline Chemistry; Metallurgy 0 Active
US10011779B2 Adsorbent for desulfurization of gasoline and method for desulfurization of gasoline Chemistry; Metallurgy 0 Active

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