Patents by Inventor Barry Youll

Barry Youll 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).

  • Isomerization of alkyl benzenes using a nu-1 zeolite catalyst
    Patent number: 4101598
    Abstract: A process for the isomerization of xylenes using the hydrogen form of new zeolite "nu-1" having a silica to alumina ratio of 20 to 150 and a characteristic X-ray diffraction pattern and adsorption properties.
    Type: Grant
    Filed: August 29, 1977
    Date of Patent: July 18, 1978
    Assignee: Imperial Chemical Industries Limited
    Inventors: Thomas Vincent Whittam, Barry Youll
  • Zeolite Nu-1
    Patent number: 4060590
    Abstract: New zeolite "nu-1" has a silica to alumina ratio of 20 to 150 and a characteristic X-ray diffraction pattern and adsorption properties. It is made from a reaction mixture containing a methylated quaternary compound. In its hydrogen form it is highly active and selective in the isomerization of xylenes.
    Type: Grant
    Filed: September 29, 1976
    Date of Patent: November 29, 1977
    Assignee: Imperial Chemical Industries Limited
    Inventors: Thomas Vincent Whittam, Barry Youll