Patents by Inventor Ashwini Kumar Agrawal

Ashwini Kumar Agrawal 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).

  • Composite Fibers Having Aligned Inorganic Nano Structures of High Aspect Ratio and Preparation Method
    Publication number: 20220403167
    Abstract: The disclosure describes composite fibers reinforced with inorganic nanostructures of high aspect ratio with homogeneous dispersion and alignment along the fiber axis and a process for producing said composite fibers. A composite fiber comprising an array of inorganic nanowires embedded in a polymer matrix. The nanowires have a diameter <100 nm and high aspect ratio of at least 5 with homogenous dispersion and polymer chains of the polymer matrix and the nanowires are oriented along the fiber axis. The nanowire wt % in the composite fiber is in the range of 0.01 to 2 wt %. The inorganic nanowires are non conducting and include at least one of ZnO, or aluminosilicate clay tubes.
    Type: Application
    Filed: June 17, 2022
    Publication date: December 22, 2022
    Applicant: Indian Institute of Technology Delhi
    Inventors: Ashwini Kumar Agrawal, Manjeet Jassal, Ratyakshi Nain, Amol Gorakh Thite, Suchismita Bhabani, Kiran Yadav
  • Apparatus and process for uniform deposition of polymeric nanofibers on substrate
    Patent number: 11162193
    Abstract: The present invention relates to an apparatus for the mass production of polymeric nanofibres and their uniform deposition over any substrate. The present invention also provides a method for the manufacture of droplet free polymeric nanofibres by electrospinning process using multi-hole spinnerets. The droplet free polymeric nanofibres of the present invention are preferably of a diameter in the range of 50 nm to 850 nm.
    Type: Grant
    Filed: January 25, 2017
    Date of Patent: November 2, 2021
    Assignee: Indian Institute of Technology Dehi
    Inventors: Ashwini Kumar Agrawal, Manjeet Jassal, Dhirendra Singh, Sandip Basu, Deepika Gupta, Rajeev Kapoor, Puneet Singla, Tamal Kanti Bera
  • APPARATUS AND PROCESS FOR UNIFORM DEPOSITION OF POLYMERIC NANOFIBERS ON SUBSTRATE
    Publication number: 20210207291
    Abstract: The present invention relates to an apparatus for the mass production of polymeric nanofibres and their uniform deposition over any substrate. The present invention also provides a method for the manufacture of droplet free polymeric nanofibres by electrospinning process using multi-hole spinnerets. The droplet free polymeric nanofibres of the present invention are preferably of a diameter in the range of 50 nm to 850 nm.
    Type: Application
    Filed: January 25, 2017
    Publication date: July 8, 2021
    Inventors: Ashwini Kumar Agrawal, Manjeet Jassal, Dhirendra Singh, Sandip Basu, Deepika Gupta, Rajeev Kapoor, Puneet Singla, Tamal Kanti Bera
  • Composite Fibers Having Aligned Inorganic Nano Structures of High Aspect Ratio and Preparation Method
    Publication number: 20180305543
    Abstract: The disclosure describes composite fibers reinforced with inorganic nanostructures of high aspect ratio with homogeneous dispersion and alignment along the fiber axis and a process for producing said composite fibers.
    Type: Application
    Filed: October 20, 2016
    Publication date: October 25, 2018
    Applicant: Indian Institute of Technology Delhi
    Inventors: Ashwini Kumar Agrawal, Manjeet Jassal, Ratyakshi Nain, Amol Gorakh Thite, Suchismita Bhabani, Kiran Yadav
  • APPARATUS AND METHODS FOR DYEING OF FIBERS
    Publication number: 20130152315
    Abstract: Systems and methods for preparing a dyed material are described. An apparatus includes a material charging device configured to charge a material with a first charge. The apparatus further includes an applicator configured to receive the charged material and a charged dye and apply the charged dye to the charged material such that an amount of the charged dye is deposited on the charged material. The charged dye is charged with a second charge that is opposite of the first charge.
    Type: Application
    Filed: June 30, 2011
    Publication date: June 20, 2013
    Inventors: Ashwini Kumar Agrawal, Anjan Sanyal