Patents by Inventor Chin C. Chu

Chin C. Chu 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).

  • Zeolite catalyst modified with group IVB metal
    Patent number: 4394300
    Abstract: A modified zeolite composition useful for the conversion of aromatic compounds to dialkylbenzene compounds rich in the 1,4-dialkylbenzene isomer. The reaction is carried out in the presence of zeolite catalyst having a silica to alumina mole ratio of at least 12 and a constraint index of about 1-12, said catalyst having been modified prior to use by treatment with compounds of germanium, tin and/or lead, and optionally phosphorus, the deposit a minor proportion of such elements on the zeolite.
    Type: Grant
    Filed: November 14, 1980
    Date of Patent: July 19, 1983
    Assignee: Mobil Oil Corporation
    Inventors: Chin C. Chu, Warren W. Kaeding
  • Zeolite catalysts modified with group IV A metals
    Patent number: 4358397
    Abstract: A modified zeolite catalyst composition useful for the conversion of aromatic compounds to dialkylbenzene compounds rich in the 1,4-dialkylbenzene compounds rich in the 1,4-dialkylbenzene isomer. The reaction is carried out in the presence of a zeolite catalyst having a silica to alumina mole ratio of at least 12 and a constraint index of about 1-12, said catalyst having been modified by treatment with compounds of Group IV A (Ti, Zr, Hf), and optionally phosphorus, to deposit a minor proportion of such elements on the zeolite.
    Type: Grant
    Filed: December 31, 1980
    Date of Patent: November 9, 1982
    Assignee: Mobil Oil Corporation
    Inventor: Chin C. Chu