Patents by Inventor Nathaniel McQueen

Nathaniel McQueen 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).

  • Use of inorganic nanoparticles to stabilize hydrogen peroxide solutions
    Publication number: 20050129782
    Abstract: The use of inorganic nanoparticles to stabilize aqueous hydrogen peroxide solutions is described. The preferred nanoparticles are formed from clays. The use of nanoparticles formed from synthetic smectite clays is particularly preferred. The stabilized hydrogen peroxide solutions may be utilized for various purposes, but are particularly useful as contact lens disinfecting solutions.
    Type: Application
    Filed: November 16, 2004
    Publication date: June 16, 2005
    Inventors: Howard Ketelson, Nathaniel McQueen
  • BIGUANIDE/QUATERNARY AMMONIUM CONTAINING COPOLYMERIC BIOCIDES AND USE THEREOF IN PHARMACEUTICAL COMPOSITIONS
    Publication number: 20050124700
    Abstract: Biguanide/quaternary ammonium compounds and the use of same as antimicrobial agents in pharmaceutical compositions are described. The biguanide/quaternary ammonium compounds are useful in the preservation of pharmaceutical compositions, particularly ophthalmic pharmaceutical compositions and compositions for treating contact lenses. The compounds are especially useful for disinfecting contact lenses.
    Type: Application
    Filed: November 18, 2004
    Publication date: June 9, 2005
    Inventors: Nathaniel McQueen, Joonsup Park