Patents by Inventor Yuliana Elvira Porras Mendoza

Yuliana Elvira Porras Mendoza 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).

  • Chlorine resistant amides, polyamides, and membranes made from the same
    Patent number: 9056284
    Abstract: A chlorine resistant polyamide is formed from the reaction product of an amine and an acid chloride monomer wherein both the amine and the acid chloride monomer are modified with electron-withdrawing groups that exhibit sufficient activity to (i) minimize any chlorination on both the amine and acid chloride and (ii) minimize N-chlorination. A membrane is made from the polyamide for use, for example, in a desalination unit.
    Type: Grant
    Filed: August 10, 2012
    Date of Patent: June 16, 2015
    Assignee: The United States of America, as represented by The Secretary of the Interior
    Inventors: Andrew Patrick Murphy, Robert Lee Riley, Yuliana Elvira Porras Mendoza
  • HALOGEN RESISTANT AMIDES, POLYAMIDES, AND MEMBRANES MADE FROM THE SAME
    Publication number: 20140263024
    Abstract: A halogen resistant polyamide is formed from the reaction product of an amine monomer and an acid chloride monomer wherein the amino group of the starting amine monomer is separated from the aromatic amine ring system by an alkyl group and (i) minimizes halogenation on the amine and (ii) minimizes N-halogenation at a pH range of approximately 7 to approximately 10.5. A membrane is made from the polyamide for use, for example, in a reverse osmosis desalination unit.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Inventors: Andrew Patrick Murphy, Robert Lee Riley, Yuliana Elvira Porras Mendoza