Patents by Inventor Pamela Virginia Irving

Pamela Virginia Irving 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).

  • Compositions containing perfume
    Patent number: 6194375
    Abstract: Perfume is absorbed within organic polymer particles which have a further polymer at their exterior. The further polymer incorporates free hydroxyl groups and serves to promote deposition of the particles from a wash or rinse liquor. The further polymer may be part of an encapsulating shell, but more conveniently is used as a stabilizer during polymerization of the particles. Highly hydrolyzed polyvinyl alcohol is preferred.
    Type: Grant
    Filed: December 23, 1997
    Date of Patent: February 27, 2001
    Assignee: Quest International B.V.
    Inventors: Jeremy Nicholas Ness, Pamela Virginia Irving, Marcus James Goodall
  • Particles containing absorbed liquids and methods of making them
    Patent number: 6024943
    Abstract: Perfume is absorbed within organic polymer particles which have a further polymer at their exterior. The further polymer incorporates free hydroxyl groups and serves to promote deposition of the particles from a wash or rinse liquor. The further polymer may be part of an encapsulating shell, but more conveniently is used as a stabiliser during polymerisation of the particles. Highly hydrolysed polyvinyl alcohol is preferred.
    Type: Grant
    Filed: December 23, 1997
    Date of Patent: February 15, 2000
    Inventors: Jeremy Nicholas Ness, Pamela Virginia Irving, Marcus James Goodall, Kenneth Charles Symes, Bryan David Grey