Patents by Inventor Eddie V. Tao

Eddie V. Tao 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).

  • Azetidinone intermediates to carbacephalosporins and process
    Patent number: 5637692
    Abstract: 7.beta.-Amino-3-hydroxy-1-carba(1-dethia)-3-cephem-4-carboxylic acid esters are provided via cyclization of cis-3-(substituted amino)-1-(2-substituted 2-oxoethyl)-4-substituted azetidinones. The 7.beta.-amino-3-hydroxy-1-carba (1-dethia)-3-cephem-4-carboxylic acid esters are useful chiral intermediates to .beta.-lactam antibiotics.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: June 10, 1997
    Assignee: Eli Lilly and Company
    Inventors: James Aikins, John P. Gardner, Billy G. Jackson, John R. Rizzo, Eddie V. Tao
  • Azetidinone intermediates to carbacephalosporins and process
    Patent number: 5453503
    Abstract: 7.beta.-Amino-3-hydroxy-1-carba(1-dethia)-3-cephem-4-carboxylic acid esters are provided via cyclization of cis-3-(substituted amino)-1-(2-substituted 2-oxoethyl)-4-substituted azetidinones. The 7.beta.-amino-3-hydroxy-1-carba(1-dethia)-3-cephem-4-carboxylic acid esters are useful chiral intermediates to .beta.-lactam antibiotics.
    Type: Grant
    Filed: August 9, 1993
    Date of Patent: September 26, 1995
    Assignee: Eli Lilly and Company
    Inventors: James Aikins, John P. Gardner, Billy G. Jackson, John R. Rizzo, Eddie V. Tao
  • Intermediates to 1-carbacephalosporins and process for preparation thereof
    Patent number: 5225553
    Abstract: Disclosed is a process using hydrolysis and hydrogenation for converting enamino .beta.-lactams to their saturated alkyl ester acid salts, key intermediates to 1-carbacephalosporins. Also disclosed are intermediates resulting from the process.
    Type: Grant
    Filed: May 27, 1992
    Date of Patent: July 6, 1993
    Assignee: Eli Lilly and Company
    Inventors: James A. Aikins, Eddie V. Tao
  • Intermediates to 1-carbacephalosporins and process for preparation thereof
    Patent number: 5159073
    Abstract: Disclosed is a process using hydrolysis and hydrogenation for converting enamino .beta.-lactams to their saturated alkyl ester acid salts, key intermediates to 1-carbacephalosporins. Also disclosed are intermediates resulting from the process.
    Type: Grant
    Filed: July 25, 1991
    Date of Patent: October 27, 1992
    Assignee: Eli Lilly and Company
    Inventors: James A. Aikins, Eddie V. Tao