Patents Examined by Ameha A. Owens
  • Patent number: 5140042
    Abstract: Fermentation of S. erythraea produces the novel avermectin, 28-hydroxy ivermectin aglycone.
    Type: Grant
    Filed: September 12, 1990
    Date of Patent: August 18, 1992
    Assignee: Merck & Co., Inc.
    Inventors: Byron H. Arison, Marvin D. Schulman, Patrick J. Doherty