Patents by Inventor Ravi-persad Sawh

Ravi-persad Sawh 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: 9865383
    Abstract: A system for activating trapped field magnets in a superconducting material may include a superconducting material element and an electromagnet source disposed proximate the superconducting material element. The electromagnet source may be configured to produce a magnetic field pulse sufficient to activate the superconducting material element. The superconducting material element may be configured to retain a trapped magnetic field that is substantially equal to a magnetic field generated by the magnetic field pulse.
    Type: Grant
    Filed: January 21, 2015
    Date of Patent: January 9, 2018
    Assignee: NATIONAL OILWELL VARCO, L.P.
    Inventors: Drew Paul Parks, Roy Weinstein, Ravi-Persad Sawh, Keith Carpenter
  • Publication number: 20160336102
    Abstract: A system for activating trapped field magnets in a superconducting material may include a superconducting material element and an electromagnet source disposed proximate the superconducting material element. The electromagnet source may be configured to produce a magnetic field pulse sufficient to activate the superconducting material element. The superconducting material element may be configured to retain a trapped magnetic field that is substantially equal to a magnetic field generated by the magnetic field pulse.
    Type: Application
    Filed: January 21, 2015
    Publication date: November 17, 2016
    Applicant: NATIONAL OILWELL VARCO, L.P.
    Inventors: Drew Paul PARKS, Roy WEINSTEIN, Ravi-Persad SAWH, Keith CARPENTER
  • Patent number: 8556843
    Abstract: Methods for treating malaria are provided, the treatment comprising the step of removing malaria-infected red blood cells from the patient's blood. Blood is drawn from the patient's circulatory system and circulated through a blood purification device that selectively eliminates the infected red blood cells from all other blood's components and replaces the cleansed blood back into the patient's circulatory system. A blood purification device, which is useful to perform the therapeutic methods of the invention, is also provided. The device leverages the magnetic properties of the hemozoin contained within the infected red blood cells and comprises one or more separation chambers (4) though which blood flows through a high-gradient magnetic field generated by an array of wires (5) separated from the chambers and not in contact with the patient blood.
    Type: Grant
    Filed: February 2, 2009
    Date of Patent: October 15, 2013
    Assignee: AccelDx
    Inventors: Alberto Gandini, Roy Weinstein, Ravi-persad Sawh, Drew Parks