Patents by Inventor Lawrence E. Limpel

Lawrence E. Limpel 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).

  • Herbicidal and plant growth regulant activity of glyoxylates
    Patent number: 4976770
    Abstract: 12H-dibenzo[d,g][1,3]dioxocin-6-carboxylic acid and certain derivatives thereof (glyoxylates) exhibit plant growth regulant and herbicidal activity when applied to a plant locus.
    Type: Grant
    Filed: June 29, 1989
    Date of Patent: December 11, 1990
    Assignee: Fermenta ASC Corporation
    Inventors: Keith D. Barnes, Frederick W. Hotzman, Lawrence E. Limpel, Thomas A. Magee
  • Insecticidal and nematocidal heterobicyclic hydroximinates, thiohydroximidates, and carbamate esters, composition, and method of use thereof
    Patent number: 4548929
    Abstract: Novel heterobicyclic compounds of Formula I, processes for preparing same and pesticidal compositions and methods are described.
    Type: Grant
    Filed: April 18, 1983
    Date of Patent: October 22, 1985
    Assignee: SDS Biotech Corporation
    Inventors: Thomas A. Magee, Robert D. Battershell, Lawrence E. Limpel, Andrew W. Ho, Arthur W. Friedman, H. Glenn Corkins, William W. Brand, Russell Buchman, Louis Storace, Edmond R. Osgood
  • Biologically active heterobicyclic hydroximidates and thiolhydroximidates and carbamate ester derivatives thereof
    Patent number: 4424213
    Abstract: Novel heterobicyclic compounds of Formula I, processes for preparing same and pesticidal compositions and methods are described.
    Type: Grant
    Filed: November 2, 1981
    Date of Patent: January 3, 1984
    Assignee: SDS Biotech Corporation
    Inventors: Thomas A. Magee, Robert D. Battershell, Lawrence E. Limpel, Andrew W. Ho, Arthur W. Friedman, H. Glenn Corkins, William W. Brand, Russell Buchman, Louis Storace, Edmond R. Osgood