Patents by Inventor Yun Hin Taufiq-Yap

Yun Hin Taufiq-Yap 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 to produce high surface area nanoparticle vanadium phosphorus oxide catalyst and product derives thereof
    Patent number: 8298981
    Abstract: An improved process to produce high surface area nanoparticle vanadium phosphorus oxide catalysts comprises the steps of reducing vanadium-containing compounds in an alcohol solution selected from the group consisting of isobutanol and benzyl alcohol and any combination derives thereof under reflux for 4 to 6 hours to form a suspended mixture; reacting dopants and phosphorus-containing compounds to the suspended mixture under reflux for 30 minutes to 3 hours to form precursors of the vanadium phosphorus oxide catalysts; drying the formed precursors; and calcining the dried precursors in a flow of gaseous n-butane/air mixture at 400 to 460° C. to form activated vanadium phosphorus oxide catalysts.
    Type: Grant
    Filed: April 14, 2008
    Date of Patent: October 30, 2012
    Assignee: Universiti Putra Malaysia
    Inventors: Yun Hin Taufiq-Yap, Ali Asghar Rownaghi
  • PROCESS TO PRODUCE HIGH SURFACE AREA NANOPARTICLE VANADIUM PHOSPHORUS OXIDE CATALYST AND PRODUCT DERIVES THEREOF
    Publication number: 20100311574
    Abstract: An improved process to produce high surface area nanoparticle vanadium phosphorus oxide catalysts comprises the steps of reducing vanadium-containing compounds in an alcohol solution selected from the group consisting of isobutanol and benzyl alcohol and any combination derives thereof under reflux for 4 to 6 hours to form a suspended mixture; reacting dopants and phosphorus-containing compounds to the suspended mixture under reflux for 30 minutes to 3 hours to form precursors of the vanadium phosphorus oxide catalysts; drying the formed precursors; and calcining the dried precursors in a flow of gaseous n-butane/air mixture at 400 to 460° C. to form activated vanadium phosphorus oxide catalysts.
    Type: Application
    Filed: April 14, 2008
    Publication date: December 9, 2010
    Applicant: UNIVERSITY PUTRA MALAYSIA
    Inventors: Yun Hin Taufiq-Yap, Ali Asghar Rownaghi