Patents by Inventor Angelina J. Duggan

Angelina J. Duggan 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).

  • Benzoheterocyclyl ketone hydrazone insecticides
    Patent number: 4895871
    Abstract: Benzoheterocyclyl ketone hydrazones of the formula ##STR1## in which Y is methylene, difluoromethylene or oxygen and n is 0 or 1, compositions thereof and their use as insecticides are disclosed and exemplified.
    Type: Grant
    Filed: July 28, 1988
    Date of Patent: January 23, 1990
    Assignee: FMC Corporation
    Inventors: Kathryn A. Lutomski, Angelina J. Duggan, John F. Engel
  • Pyrazoline-1-carboxamides, composition containing them, and insecticidal method of using them
    Patent number: 4767779
    Abstract: Pyrazolines of the following formula are insecticides: ##STR1## wherein R.sub.A, R.sub.B and R.sub.C are aromatic groups; R.sub.N is hydrogen or lower alkyl; and W is oxygen or sulfur.
    Type: Grant
    Filed: April 9, 1986
    Date of Patent: August 30, 1988
    Assignee: FMC Corporation
    Inventor: Angelina J. Duggan
  • Vinyl phenylthiocarbonate
    Patent number: 4622408
    Abstract: The novel reagent, vinyl phenylthiocarbonate, is prepared. It is useful for the introduction of the vinyloxycarbonyl protecting group which is a valuable protecting group for amines, amino acids, peptides, proteins and phenols.
    Type: Grant
    Filed: October 22, 1981
    Date of Patent: November 11, 1986
    Assignee: Merck & Co., Inc.
    Inventor: Angelina J. Duggan
  • Intermediates for preparing hydroxyphenylpyridazinones
    Patent number: 4272440
    Abstract: 5-(5'-Halo-2'-methoxyphenyl)-3,4-dihalo-2(5H)-furanones are prepared by a Friedel-Crafts reaction using a p-haloanisole and a mucohalic acid in the presence of aluminum chloride. They are used as chemical intermediates for preparing hydroxyphenylpyridazinones.
    Type: Grant
    Filed: February 2, 1979
    Date of Patent: June 9, 1981
    Assignee: SmithKline Corporation
    Inventors: Angelina J. Duggan, Robert L. Webb