Patents by Inventor Brij Singh

Brij Singh 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).

  • Publication number: 20070246689
    Abstract: Optically transparent, conductive polymer compositions and methods for making them are claimed. These conductive polymer compositions comprise an oxidized 3,4-ethylenedioxythiopene polymer, a polysulfonated styrene polymer, single wall carbon nanotubes and/or metallic nanoparticles. The conductive polymer compositions can include both single wall carbon nanotubes and metallic nanoparticles. The conductive polymer compositions have a sheet resistance of less than about 200 Ohms/square, a conductivity of greater than about 300 siemens/cm, and a visible light (380-800 nm) transmission level of greater than about 50%, preferably greater than about 85% and most preferably greater than about 90% (when corrected for substrate). The conductive polymer compositions comprising single wall carbon nanotubes are made by mixing the oxidized 3,4-ethylenedioxythiopene polymer and polysulfonated styrene polymer with single wall carbon nanotubes and then sonicating the mixture.
    Type: Application
    Filed: April 10, 2007
    Publication date: October 25, 2007
    Inventors: Jiaxin Ge, Brij Singh
  • Publication number: 20070238804
    Abstract: UV curable coating compositions containing a surface modified (functionalized) colloidal silica, an acrylic monomer, an epoxy monomer and a catalytic amount of a UV polymerization initiator that are essentially-free of water are described. The compositions can optionally include a wetting agent. To form the UV curable coating compositions, an acrylic monomer, epoxy monomer and an acrylate/vinyl silane-modified colloidal silica are mixed in an aqueous/organic solvent system to form a mixture. The method features unique solvent removal steps. Solvent is first removed from the mixture under vacuum until a gel begins to form. Once gel begins to form, solvent removal is stopped and a water miscible organic solvent is added to the mixture, thus redispersing the mixture along with any formed gel. After the mixture and any formed gel have been redispersed, the remaining solvent is removed under vacuum to form a coating composition that is gel free, optically clear and essentially-free of water.
    Type: Application
    Filed: April 10, 2007
    Publication date: October 11, 2007
    Inventors: Encai Ho, Brij Singh
  • Publication number: 20050234187
    Abstract: A product for vapor depositing films of amphiphilic molecules includes a heat vaporizable film forming substance of amphiphilic molecules or amphiphilic polymers carried by a tablet of solid state inert material. The product is heated in a chamber to vaporize the film forming substance and produce a vapor of amphiphilic molecules or amphiphilic polymers which settle on a substrate surface in the chamber. The amphiphilic molecules or amphiphilic polymers chemically bond to the substrate surface and self-assemble into a thin film. The solid state inert material is unreactive with the film forming substance or with the vapor, and remains stable and unvaporized at the vaporizing temperature of the film forming substance.
    Type: Application
    Filed: February 24, 2005
    Publication date: October 20, 2005
    Inventors: Pramod Arora, Brij Singh
  • Publication number: 20050175786
    Abstract: An applicator/dispenser having a tubular body with a solution chamber and an applicator pad. A solution within the solution chamber is separated from the applicator pad by a rupturable barrier that is selectively ruptured for wetting the pad with the solution which then is applied to a surface by wiping the pad across the surface.
    Type: Application
    Filed: January 21, 2005
    Publication date: August 11, 2005
    Inventors: Brij Singh, John Dietrich