Patents by Inventor Barbara B. Shreve

Barbara B. Shreve 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).

  • Method of producing antibacterial agents and bioconverting microorganism therefor
    Patent number: 4522919
    Abstract: Improved bioconverting strain of Streptomyces thermotolerans useful in preparing tylosin esters and new antibacterial macrocin or lactenocin ester derivatives of the formula: ##STR1## wherein R is formyl or hydroxymethyl; R.sup.1 is hydrogen, acetyl or propionyl; R.sup.2 is hydrogen or ##STR2## and R.sup.3 is hydrogen, acetyl, propionyl, n-butyryl or isovaleryl; provided that one of R.sup.1 or R.sup.3 must be other than hydrogen.
    Type: Grant
    Filed: March 3, 1983
    Date of Patent: June 11, 1985
    Assignee: Eli Lilly and Company
    Inventors: Barbara B. Shreve, Jan R. Turner