Patents by Inventor Dhirendra Singh

Dhirendra Singh 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).

  • A METHOD OF PREPARING DOPE DYED LYOCELL FIBRE
    Publication number: 20230147314
    Abstract: A process for obtaining a dope dyed lyocell fibre can include the steps of (a) mixing one or more pigment with an aqueous organic solvent to obtain a slurry; (b) applying vacuum to said slurry to remove excess water content to obtain a masterbatch (c) mixing the masterbatch obtained in step (b) to a lyocell dope to obtain a pigmented dope; and (d) extruding said pigmented dope of step (c) through a spinneret to form dope dyed lyocell fiber.
    Type: Application
    Filed: February 18, 2021
    Publication date: May 11, 2023
    Inventors: Vivek GANVIR, Santosh REVANKAR, Dhirendra SINGH, Shirish THAKRE, Sachin JADHAV
  • DEVICES AND METHODS FOR TREATING AN ANEURYSM
    Publication number: 20220079738
    Abstract: A system and method are provided for treating an aneurysm or other vessel disease or defect. The present disclosure includes an expandable device for placement in a vessel, where the mechanically expandable device includes a membrane. Also disclosed is a delivery device constructed and arranged to position the expandable device such that the exterior surface of the expandable device engages with the inner surface of the vessel and maintains a fluid pathway through said vessel.
    Type: Application
    Filed: April 26, 2021
    Publication date: March 17, 2022
    Inventors: Dean SCHAEFER, Felizardo Gratila BATIAO, Siew Yin LEE, J. Christopher FLAHERTY, Dhirendra SINGH
  • 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
  • Devices and methods for treating an aneurysm
    Patent number: 10987208
    Abstract: A system and method are provided for treating an aneurysm or other vessel disease or defect. The present disclosure includes an expandable device for placement in a vessel, where the mechanically expandable device includes a membrane. Also disclosed is a delivery device constructed and arranged to position the expandable device such that the exterior surface of the expandable device engages with the inner surface of the vessel and maintains a fluid pathway through said vessel.
    Type: Grant
    Filed: April 5, 2013
    Date of Patent: April 27, 2021
    Assignee: MERLIN MD PTE LTD.
    Inventors: Dean Schaefer, Felizardo Gratila Batiao, Siew Yin Lee, J. Christopher Flaherty, Dhirendra Singh
  • DEVICES AND METHODS FOR TREATING AN ANEURYSM
    Publication number: 20150190221
    Abstract: A system and method are provided for treating an aneurysm or other vessel disease or defect. The present disclosure includes an expandable device for placement in a vessel, where the mechanically expandable device includes a membrane. Also disclosed is a delivery device constructed and arranged to position the expandable device such that the exterior surface of the expandable device engages with the inner surface of the vessel and maintains a fluid pathway through said vessel.
    Type: Application
    Filed: April 5, 2013
    Publication date: July 9, 2015
    Applicant: MERLIN MD PTE LTD.
    Inventors: Dean Schaefer, Felizardo Gratila Batiao, Siew Yin Lee, Christopher Flaherty, Dhirendra Singh
  • Lens epithelial cell derived growth factor
    Patent number: 6750052
    Abstract: The invention pertains to nucleic acids encoding a lens epithelial cell derived growth factor protein, including fragments and biologically functional variants thereof. The invention also pertains to therapeutics and diagnostics involving the foregoing proteins and genes and agents that bind the foregoing proteins and genes.
    Type: Grant
    Filed: July 23, 1998
    Date of Patent: June 15, 2004
    Assignee: The Brigham and Women's Hospital, Inc.
    Inventors: Toshimichi Shinohara, Dhirendra Singh, Leo T. Chylack, Jr.