Patents by Inventor Donald R. Hahn

Donald R. Hahn 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).

  • Synthetic derivatives of 21-butenyl and related spinosyns
    Patent number: 6919464
    Abstract: Macrolide compounds produced by synthetic modification of factors produced by NRRL 30141 have insecticidal and acaricidal activity and are useful intermediates for preparing additional insecticidal and acaricidal compounds
    Type: Grant
    Filed: March 21, 2002
    Date of Patent: July 19, 2005
    Assignee: Dow AgroSciences LLC
    Inventors: Gary D. Crouse, Donald R. Hahn, Paul R. Graupner, Jeffrey R. Gilbert, Paul Lewer, Jesse L. Balcer
  • Pesticidal macrolides
    Patent number: 6800614
    Abstract: Macrolide compounds produced by culturing Saccharopolyspora species LW107129 (NRRL 30141) have insecticidal and acaricidal activity and are useful intermediates for preparing spinosyn analogs.
    Type: Grant
    Filed: August 13, 2002
    Date of Patent: October 5, 2004
    Assignee: Dow AgroSciences LLC
    Inventors: Paul Lewer, Donald R. Hahn, Laura L. Karr, Paul R. Graupner, Jeffrey R. Gilbert, Thomas V. Worden, Raymond C. Yao, Dennis W. Norton
  • Pesticidal spinosyn derivates
    Publication number: 20040097377
    Abstract: Macrolide compounds produced by culturing novel mutant Saccharopolyspora sp. strains have insecticidal and acaricidal activity and are useful intermediates for preparing spinosyn analogs.
    Type: Application
    Filed: September 15, 2003
    Publication date: May 20, 2004
    Inventors: Donald R. Hahn, Jesse L. Balcer, Paul Lewer, Jeffrey R. Gilbert, Paul R. Grausner
  • Pesticidal macrolides
    Publication number: 20030186899
    Abstract: Macrolide compounds produced by culturing Saccharopolyspora species LW107129 (NRRL 30141) have insecticidal and acaricidal activity and are useful intermediates for preparing spinosyn analogs.
    Type: Application
    Filed: August 13, 2002
    Publication date: October 2, 2003
    Inventors: Paul Lewer, Donald R. Hahn, Laura L. Karr, Paul R. Graupner, Jeffrey R. Gilbert, Thomas V. Worden, Raymond C. Yao, Dennis W. Norton
  • Pesticidal macrolides
    Patent number: 6455504
    Abstract: Macrolide compounds produced by culturing Saccharopolyspora species LW107129 (NRRL 30141) have insecticidal and acaricidal activity and are useful intermediates for preparing spinosyn analogs.
    Type: Grant
    Filed: September 13, 2000
    Date of Patent: September 24, 2002
    Assignee: Dow AgroSciences LLC
    Inventors: Paul Lewer, Donald R. Hahn, Laura L. Karr, Paul R. Graupner, Jeffrey R. Gilbert, Thomas V. Worden, Raymond C. Yao, Dennis W. Norton
  • Preparation of lysocellin beads by fermentation
    Patent number: 5849550
    Abstract: A method for producing lysocellin in bead form comprises:(a) cultivating a lysocellin-producing microorganism in an aqueous nutrient-containing fermentation broth under lysocellin-producing conditions;(b) adding a base or inorganic phosphate to the fermentation broth within about the first 24 hours of the beginning of the fermentation in an amount sufficient to ensure that the lysocellin is produced in the form of a cation salt of lysocellin;(c) providing a lipid to the fermentation broth such that the lipid is present in the broth in a sufficient amount to form discrete beads with the lysocellin in the fermentation broth; and(d) separating the beads from the broth.
    Type: Grant
    Filed: June 30, 1995
    Date of Patent: December 15, 1998
    Assignee: Mallinckrodt Veterinary, Inc.
    Inventors: Donald R. Hahn, James R. McMullen, Vikram P. Mehrotra