Patents by Inventor Sumit BARTHWAL

Sumit BARTHWAL 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: 20220186382
    Abstract: Provided is a surface structure having freezing-delaying performance and freezing layer-separating performance The surface structure includes a microstructural layer formed in the form of microscale irregularities and a plurality of nanopores formed in the microstructural layer. A freezing-delaying layer is formed on a surface of the microstructural layer to delay a freezing phenomenon. Also, a hygroscopic material is accommodated in the nanopores, so that when a surface of the freezing-delaying layer starts to freeze, the hygroscopic material is discharged from the nanopores to form a hygroscopic material film, and thus adhesion between the freezing-delaying layer and ice is reduced to allow the ice to be detached from the freezing-delaying layer.
    Type: Application
    Filed: March 8, 2022
    Publication date: June 16, 2022
    Applicant: Kookmin University Industry Academy Cooperation Foundation
    Inventors: Sihyung Lim, Bok Hyun Lee, Sumit Barthwal
  • Publication number: 20150368824
    Abstract: Provided are a superhydrophobic/superoleophobic structure and a method of manufacturing the superhydrophobic/superoleophobic structure. The superhydrophobic/superoleophobic structure includes: a roughened primary structure formed on a surface of a metal base; nanopores formed in the roughened primary structure; and a hydrophobic/oleophobic layer formed on a surface of the roughened primary structure. The superhydrophobic/superoleophobic structure makes a large contact angle and a small sliding angle with both aqueous solutions and oily solutions, thereby having a high degree of superhydrophobicity/superoleophobicity. In addition, the superhydrophobic/superoleophobic structure may be formed on large or curved structural objects by the manufacturing method without using a special device.
    Type: Application
    Filed: February 6, 2014
    Publication date: December 24, 2015
    Applicant: Kookmin University Industry Academy Cooperation Foundation
    Inventors: Si Hyung LIM, Sumit BARTHWAL