Patents by Inventor Sumil Thapa

Sumil Thapa 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: 11362431
    Abstract: An optically transparent radar absorbing material has alternating layers of optically transparent conductive material with layers of even thickness of optically transparent material having a homogenous dielectric constant. The even thickness is one quarter of the wavelength of a targeted electromagnetic energy.
    Type: Grant
    Filed: June 16, 2016
    Date of Patent: June 14, 2022
    Assignee: Oceanit Laboratories, Inc.
    Inventors: Derek Ah Yo, Ashavani Kumar, Sumil Thapa
  • Patent number: 10240244
    Abstract: Electroless plating is accomplished by forming a metal salt and a polymer solution as a binder into a solid electrolyte block and depositing metal on the surface by rubbing or brushing the solid electrolyte block onto a surface with minimal or no water and without an electric potential/power source. The solid electrolyte block is also conformable/moldable and can be used to deposit metal on to both conductive and nonconductive surface through electroless deposition process.
    Type: Grant
    Filed: March 12, 2015
    Date of Patent: March 26, 2019
    Assignee: Oceanit Laboratories, Inc.
    Inventors: Ganesh Kumar Arumugam, Ashavani Kumar, Vinod P. Veedu, Sumil Thapa
  • Patent number: 9845264
    Abstract: A high temperature composite includes a binder, cement or geopolymer and ceramic filler, negative coefficient of thermal expansion materials of AM2O8 or A2(MO4)3 family or ZrV2O7. The material is compatible with concrete, any ceramics or metals or metal alloy. The material is heat shock resistant and stable in harsh chemical environments and is impermeable to most solvents. The new sealant materials can be used as sealants, heat shock resistant structural materials and coatings.
    Type: Grant
    Filed: January 14, 2013
    Date of Patent: December 19, 2017
    Assignee: Oceanit Laboratories, Inc.
    Inventors: Vinod P. Veedu, Ashavani Kumar, Sumil Thapa
  • Publication number: 20160177463
    Abstract: Electroless plating is accomplished by forming a metal salt and a polymer solution as a binder into a solid electrolyte block and depositing metal on the surface by rubbing or brushing the solid electrolyte block onto a surface with minimal or no water and without an electric potential/power source. The solid electrolyte block is also conformable/moldable and can be used to deposit metal on to both conductive and nonconductive surface through electroless deposition process.
    Type: Application
    Filed: March 12, 2015
    Publication date: June 23, 2016
    Inventors: Ganesh Kumar Arumugam, Ashavani Kumar, Vinod P. Veedu, Sumil Thapa
  • Patent number: 8802801
    Abstract: A self-healing polymer additive includes diene (e.g. butadiene, cyclohexadiene, pentadiene, tetrahydrofuron or their derivatives) and dienophile (e.g. maleic anhydride, maleamide, conjugated carbonyls or their derivatives etc.). One polymer includes tetrahydrofuron and maleimide. Furfurylamine 12 (1-10 gm) is diluted in acetone. Under an inert atmosphere an equivalent amount of granular maleic acid is added slowly, and the reaction is allowed to take place. Resulting maleamic acid precipitates. The maleamic acid product is separated, dried and purified by re-crystallization. The maleamic (1-5 gm) acid is dissolved in acetic anhydride along with a catalytic amount of sodium acetate. The resulting solution is heated for a few hours in 80-120° C. The precipitated final product is separated, purified and dried in a vacuum.
    Type: Grant
    Filed: March 26, 2012
    Date of Patent: August 12, 2014
    Assignee: Oceanit Laboratories, Inc.
    Inventors: Ashavani Kumar, Vinod P. Veedu, Venkat Kamavaram, Sumil Thapa