Patents by Inventor Alexandra B. Shortt

Alexandra B. Shortt 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 treating surface with water-in-oil emulsion composition
    Patent number: 4891073
    Abstract: A surface-treating low-stability water-in-oil emulsion composition particularly adapted for cleaning a surface comprising at least one liquid hydrocarbon oil solvent, water and an emulsifying agent comprising an N-alkanoyl-2,2'-iminobis(ethyl alkanoate). The emulsion composition may further include a compressed gas whereby the composition may be applied to a surface in the form of an aerosol.
    Type: Grant
    Filed: April 13, 1989
    Date of Patent: January 2, 1990
    Assignee: Pennzoil Products Company
    Inventors: Alexandra B. Shortt, D. V. Satyanarayana Gupta
  • Surface treating water-in-oil emulsion composition and method
    Patent number: 4867911
    Abstract: A surface-treating low-stability water-in-oil emulsion composition particularly adapted for cleaning a surface comprising at least one liquid hydrocarbon oil solvent, water, and an emulsifying agent comprising an N-alkanoyl-2,2'-iminobis(ethyl alkanoate). The emulsion composition may further include a compressed gas whereby the composition may be applied to a surface in the form of an aerosol.
    Type: Grant
    Filed: January 19, 1988
    Date of Patent: September 19, 1989
    Assignee: Pennzoil Products Company
    Inventors: Alexandra B. Shortt, D. V. Satyanarayana Gupta
  • Trithiophosphonate insecticides
    Patent number: 4678778
    Abstract: Compounds for insecticidal control, having the formula ##STR1## in which R.sub.1 is methyl or ethyl; R.sub.2 is C.sub.3 -C.sub.5 alkyl or bromo-C.sub.4 -alkyl and R.sub.3 is C.sub.1 -C.sub.4 bromoalkyl or 2,2,2-trifluoroethyl, together with insecticidal compositions containing such compounds, and methods for controlling insects.
    Type: Grant
    Filed: August 21, 1986
    Date of Patent: July 7, 1987
    Assignee: Stauffer Chemical Company
    Inventors: Alexandra B. Shortt, William G. Haag
  • S-propargyl trithiophosphonate insecticides
    Patent number: 4654430
    Abstract: Compounds having the formula ##STR1## in which R.sub.1 is methyl or ethyl and R.sub.2 is ethyl or a C.sub.3 -C.sub.5 branched alkyl group other than, 1,2-dimethylpropyl, are effective soil insecticides.
    Type: Grant
    Filed: May 27, 1986
    Date of Patent: March 31, 1987
    Assignee: Stauffer Chemical Company
    Inventor: Alexandra B. Shortt
  • S-phenylacetonyl trithiophosphonate insecticides
    Patent number: 4636495
    Abstract: Compounds having the formula ##STR1## in which R.sub.1 is methyl or ethyl; R.sub.2 is C.sub.1 -C.sub.6 alkyl; and R.sub.3 is phenyl or substituted phenyl, are insecticides.
    Type: Grant
    Filed: April 22, 1985
    Date of Patent: January 13, 1987
    Assignee: Stauffer Chemical Company
    Inventors: Charles G. Chavdarian, Alexandra B. Shortt
  • S-propargyl trithiophosphonate insecticides for use in soil
    Patent number: 4614735
    Abstract: Compounds having the formula ##STR1## in which R.sub.1 is methyl or ethyl and R.sub.2 is ethyl or a C.sub.3 -C.sub.5 branched alkyl group other than 1,2-dimethylpropyl, are effective soil insecticides.
    Type: Grant
    Filed: December 24, 1984
    Date of Patent: September 30, 1986
    Assignee: Stauffer Chemical Company
    Inventor: Alexandra B. Shortt
  • Bis-alkylene trithiophosphonate insecticides
    Patent number: 4548930
    Abstract: Compounds and compositions containing them, for insecticidal control have the formula ##STR1## in which R is an alkylene group having from 1 to 5 carbon atoms; R.sub.1 and R.sub.2 are methyl or ethyl; and R.sub.3 and R.sub.4 are independently n-propyl, branched chain alkyl groups having 3 or 4 carbon atoms, and branched alkyl groups having 5 carbon atoms and a branching at the .alpha.- or .beta.-carbon atom.
    Type: Grant
    Filed: December 27, 1983
    Date of Patent: October 22, 1985
    Assignee: Stauffer Chemical Company
    Inventors: Alexandra B. Shortt, William G. Haag