Patents by Inventor David Hebel

David Hebel 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).

  • Azido-substituted aromatic amino acids
    Patent number: 5276170
    Abstract: Azido-substituted aromatic amino acids represented by the following formula I are synthesized through the use of tyrosine phenol-lyase. The azido derivatives are suitable for use as photoaffinity labels and inhibitors; ##STR1## wherein R.sup.1 represents a lower alkyl, a lower alkoxy, or an hydroxy group; R.sup.2 and R.sup.3 each independently represent a hydrogen or a lower alkyl group; X represents a hydrogen, a lower alkyl, an alkali metal, or an ammonium group; n is an integer of 0 to 3.
    Type: Grant
    Filed: January 16, 1992
    Date of Patent: January 4, 1994
    Assignee: The United States of America as represented by the Department of Health and Human Services
    Inventors: Kenneth L. Kirk, Robert Phillips, David Hebel