Patents by Inventor Subrat KAR

Subrat KAR 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).

  • Person identification and imposter detection using footfall generated seismic signals
    Patent number: 12618991
    Abstract: A smart device, biometric authentication system and a corresponding method thereof for person identification and imposter detection has been disclosed. The method comprises detection and extraction of seismic signals generated from corresponding footfalls, by means of unsupervised learning based detection and extraction module (USLEEM) and detection and identification of imposter and/or registered users respectively by means of an identification module.
    Type: Grant
    Filed: December 4, 2020
    Date of Patent: May 5, 2026
    Assignee: INDIAN INSTITUTE OF TECHNOLOGY DELHI
    Inventors: Subrat Kar, Bodhibrata Mukhopadhyay, Sahil Anchal
  • ENHANCEMENT OF THERMAL CONDUCTIVITY OF ALUMINIUM BY DOPING GRAPHENE FOLLOWED BY MELTING AND CASTING PROCESS
    Publication number: 20250041933
    Abstract: The present invention relates to the process for enhancement of thermal conductivity property of aluminium up to 50 to 90% or more by doping graphene or reduced graphene of two to five layers into aluminium by melting and casting process under inert or vacuum or atmospheric condition using salt and flux. Graphene with purity of 70 to 90% was incorporated into aluminium of any form for 30 to 120 minutes under inert atmosphere or vacuum at 700-900 deg C. Graphene of 0.1 to 5% weight of the total weight of aluminium has been used in the process. Under optimum conditions enhancement of thermal conductivity up to 80 to 90% has been observed using this process.
    Type: Application
    Filed: January 24, 2022
    Publication date: February 6, 2025
    Inventors: Saroj Kumar Nayak, Bijoy Kumar Satpathy, Kedar Bhojak, Arijit Mitra, Subrat Kar, Binuta Patra, Aruna Kumar Sahu
  • PERSON IDENTIFICATION AND IMPOSTER DETECTION USING FOOTFALL GENERATED SEISMIC SIGNALS
    Publication number: 20210182603
    Abstract: A smart device, biometric authentication system and a corresponding method thereof for person identification and imposter detection has been disclosed. The method comprises detection and extraction of seismic signals generated from corresponding footfalls, by means of unsupervised learning based detection and extraction module (USLEEM) and detection and identification of imposter and/or registered users respectively by means of an identification module.
    Type: Application
    Filed: December 4, 2020
    Publication date: June 17, 2021
    Inventors: Subrat KAR, Bodhibrata MUKHOPADHYAY, Sahil ANCHAL