Patents by Inventor Ankit Nagar

Ankit Nagar 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: 11536520
    Abstract: The present invention relates to a method of enhancing heat transfer of metallic surfaces by (1) fabricating hierarchical micro-nanostructured surfaces using etching processes, and (2) fabricating hydrophobic and hydrophilic regions, using a printing or a coating technique, followed by etching. The said method enhances the density of condensation sites over a metallic surface and additionally facilitates the departure of condensed droplets from the surface. Such a surface also enhances the sensible heat transfer characteristics, and improves the coefficient of performance (COP) of refrigeration systems for applications like atmospheric water generators, dehumidifiers, air conditioners, etc.
    Type: Grant
    Filed: February 2, 2019
    Date of Patent: December 27, 2022
    Assignee: INDIAN INSTITUTE OF TECHNOLOGY MADRAS (IIT MADRAS)
    Inventors: Pradeep Thalappil, Ankit Nagar, Ramesh Kumar, Srikrishnarka Pillalamarri
  • Publication number: 20210041192
    Abstract: The present invention relates to a method of enhancing heat transfer of metallic surfaces by (1) fabricating hierarchical micro-nanostructured surfaces using etching processes, and (2) fabricating hydrophobic and hydrophilic regions, using a printing or a coating technique, followed by etching. The said method enhances the density of condensation sites over a metallic surface and additionally facilitates the departure of condensed droplets from the surface. Such a surface also enhances the sensible heat transfer characteristics, and improves the coefficient of performance (COP) of refrigeration systems for applications like atmospheric water generators, dehumidifiers, air conditioners, etc.
    Type: Application
    Filed: February 2, 2019
    Publication date: February 11, 2021
    Applicant: INDIAN INSTITUTE OF TECHNOLOGY MADRAS (IIT MADRAS)
    Inventors: Pradeep THALAPPIL, Ankit NAGAR, Ramesh KUMAR, Srikrishnarka PILLALAMARRI
  • Patent number: 10885415
    Abstract: Disclosed herein is an authenticating mark formed on the surface of a product or package. The said mark comprising: at least an overt portion of visible 3D random image in the form of physically unclonable function (PUF) characterized in that the said PUF is random cracks or colors. Additionally, phosphor particles might be added to this pattern as covert features. It further disclose a system and method for identifying genuine or counterfeited products by analyzing the image of a 3D-PUF and its encrypted image using a commonly held scanning device.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: January 5, 2021
    Assignee: TRANSPACKS TECHNOLOGIES PRIVATE LIMITED
    Inventors: Deepak Gupta, Ankit Nagar
  • Publication number: 20200082235
    Abstract: Disclosed herein is an authenticating mark formed on the surface of a product or package. The said mark comprising: at least an overt portion of visible 3D random image in the form of physically unclonable function (PUF) characterized in that the said PUF is random cracks or colors. Additionally, phosphor particles might be added to this pattern as covert features. It further disclose a system and method for identifying genuine or counterfeited products by analyzing the image of a 3D-PUF and its encrypted image using a commonly held scanning device.
    Type: Application
    Filed: September 7, 2018
    Publication date: March 12, 2020
    Inventors: Deepak Gupta, Ankit Nagar