Patents by Inventor Robert J. Bayer

Robert J. Bayer 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).

  • Enzymatic synthesis of glycosidic linkages
    Patent number: 5922577
    Abstract: The present invention provides improved methods for the formation of glycosidic linkages. These methods are useful for the preparation of compounds of formula:NeuAc.alpha.(2.fwdarw.3)Gal.beta.(1.fwdarw.4)(Fuc.alpha. 1.fwdarw.3)GlcN(R').beta.(1.fwdarw.3)Gal.beta.
    Type: Grant
    Filed: April 10, 1996
    Date of Patent: July 13, 1999
    Assignee: Cytel Corporation
    Inventors: Shawn Defrees, Robert J. Bayer, Murray Ratcliffe
  • Enzymatic synthesis of oligosaccharides
    Patent number: 5876980
    Abstract: The present invention provides improved methods for the preparation of sialyl galactosides. The methods use sialyl transferase cycle in which the reaction conditions are optimized to provide increased yields.
    Type: Grant
    Filed: April 11, 1995
    Date of Patent: March 2, 1999
    Assignee: Cytel Corporation
    Inventors: Shawn DeFrees, Robert J. Bayer, Murray Ratcliffe
  • Enzymatic synthesis of glycosidic linkages
    Patent number: 5728554
    Abstract: The present invention provides improved methods for the formation of glycosidic linkages. These methods are useful for the preparation of compounds of formula:NeuAc.alpha.(2.fwdarw.3)Gal.beta.(1.fwdarw.4)(Fuc.alpha. 1.fwdarw.3)GlcN(R').beta.(1.fwdarw.3)Gal.beta.
    Type: Grant
    Filed: April 11, 1995
    Date of Patent: March 17, 1998
    Assignee: Cytel Corporation
    Inventors: Robert J. Bayer, Shawn DeFrees, Murray Ratcliffe