Patents by Inventor Joyce Lo

Joyce Lo has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Process for synthesizing alkylated arylamines
    Publication number: 20060276677
    Abstract: An improved process and novel catalyst system for alkylating arylamines generally comprising the combination of an arylamine and an alkylating agent in the presence of a trialkyl aluminum compound and a hydrogen halide. The improved process and new catalyst system allows for higher total conversion of the arylamine feedstock without sacrificing substitution product selectivity and also allows for the reaction of recycled alkylene feedstock.
    Type: Application
    Filed: May 30, 2006
    Publication date: December 7, 2006
    Inventors: Hassan Elnagar, Vincent Gatto, James Boone, Joyce Lo, Joseph Coury, Brett Sakahara