Patents by Inventor Zeru Tekie

Zeru Tekie 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 for the preparation of a nickel/phosphorous ligand catalyst for olefin hydrocyanation
    Patent number: 6893996
    Abstract: A process for preparing a hydrocyanation catalyst comprising contacting a bidentate phosphorous-containing ligand with a molar excess of nickel chloride in the presence of a nitrile solvent and a reducing metal which is more electropositive than nickel. Preferably, the nickel chloride is dried before use.
    Type: Grant
    Filed: November 26, 2001
    Date of Patent: May 17, 2005
    Assignee: Invista North America S.A.R.L.
    Inventors: Luis A. Chu, Lucy M. Clarkson, Norman Herron, Ronald J. McKinney, Kenneth G. Moloy, Zeru Tekie
  • Process for the preparation of a nickel/phosphorous ligand catalyst for olefin hydrocyanation
    Publication number: 20030100442
    Abstract: A process for preparing a hydrocyanation catalyst comprising contacting a bidentate phosphorous-containing ligand with a molar excess of nickel chloride in the presence of a nitrile solvent and a reducing metal which is more electropositive than nickel. Preferably, the nickel chloride is dried before use.
    Type: Application
    Filed: November 26, 2001
    Publication date: May 29, 2003
    Inventors: Luis A. Chu, Lucy M. Clarkson, Norman Herron, Ronald J. Mckinney, Kenneth G. Moloy, Zeru Tekie