Patents by Inventor Giao V. Nguyen

Giao V. Nguyen 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).

  • Patent number: 5118444
    Abstract: The present invention discloses a method of producing as aqueous agricultural composition exhibiting reduced irritation to animals and corrosiveness to materials by admixing an agriculturally acceptable pesticide and an amine-oxide surfactant having the Formula: ##STR1## wherein R.sup.1 is a straight or branched chain about C.sub.6 to about C.sub.20 alkyl or alkenyl group, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are each independently selected from the group of straight and branched chain lower alkylenyl groups, and a+b+c+d is about 5 to about 25. The compositions exhibit reduced eye irritation to animals and reduced corrosiveness to metals. A method of treating plants is also disclosed.
    Type: Grant
    Filed: April 10, 1991
    Date of Patent: June 2, 1992
    Assignee: Witco Corporation
    Inventor: Giao V. Nguyen
  • Patent number: 4297260
    Abstract: An erasable writing medium composition suitable for use in porous tip and ballpoint pens is provided. The erasable writing medium comprises an emulsion having a continuous water phase and discontinuous phase that comprises a styrene-butadiene latex copolymer. The colorant or dye is dissolved in the continuous phase and also is believed to form a surface layer on the discontinuous phase particles. Upon drying, the colorant is captured by the copolymer thereby preventing the colorant from being absorbed by the writing surface.
    Type: Grant
    Filed: November 19, 1979
    Date of Patent: October 27, 1981
    Assignee: Liquid Paper Corporation
    Inventors: William I. Ferree, Jr., Giao V. Nguyen
  • Patent number: 4251276
    Abstract: A thermally activated ink and a thermally activated transfer ribbon, comprising a polymer, oil and oil-gelling agent, are provided. The ink may form a coating on a substrate, such as a ribbon, for use in conjunction with a thermal printer or a nonimpact typewriter, for example, for generating characters on ordinary paper. A method is also provided for generating characters on ordinary paper with a thermal print head.
    Type: Grant
    Filed: September 5, 1979
    Date of Patent: February 17, 1981
    Assignee: Liquid Paper Corporation
    Inventors: William I. Ferree, Jr., Giao V. Nguyen