Patents by Inventor Phat T. Lu

Phat T. Lu 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).

  • Manufacture of 4,4'-diisopropylbiphenyl
    Patent number: 5026940
    Abstract: The selective isopropylation of biphenyl or 4-isopropylbiphenyl to diisopropylbiphenyl while maximizing the yield of the 4,4'-diisopropoylbiphenyl isomer is achieved by carrying out the reaction in the presence of an acidic crystalline molecular sieve with pore aperture 5.7-6.1 .ANG., preferably SAPO-11 or ZSM-12.
    Type: Grant
    Filed: September 8, 1989
    Date of Patent: June 25, 1991
    Assignee: Catalytica, Inc.
    Inventors: Jere Fellmann, Paul Wentrcek, Phat T. Lu