Patents by Inventor Pradeep Samarasekere

Pradeep Samarasekere 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).

  • PROCESS FOR THE RECOVERY OF RARE EARTH METALS FROM PERMANENT MAGNETS
    Publication number: 20200199709
    Abstract: Systems and methods for recovering rare earth metals from rare earth metal-containing magnets includes fragmenting or commutating the magnets, contacting the commutated magnets with a mixture of low molecular weight carboxylic acids such as formic acid and water, and removing or extracting non-rare earth metal carboxylate phases such as an iron carboxylate (formate) phase from a rare earth metal carboxylate (formate) phase, using a solvent such as water.
    Type: Application
    Filed: January 9, 2020
    Publication date: June 25, 2020
    Applicant: University of Houston System
    Inventors: Allan J. Jacobson, Pradeep Samarasekere
  • Process for the recovery of rare earth metals from permanent magnets
    Patent number: 10577677
    Abstract: Systems and methods for recovering rare earth metals from rare earth metal-containing magnets includes fragmenting or commutating the magnets, contacting the commutated magnets with a mixture of low molecular weight carboxylic acids such as formic acid and water, and removing or extracting non-rare earth metal carboxylate phases such as an iron carboxylate (formate) phase from a rare earth metal carboxylate (formate) phase, using a solvent such as water.
    Type: Grant
    Filed: July 11, 2016
    Date of Patent: March 3, 2020
    Assignee: University of Houston System
    Inventors: Allan J. Jacobson, Pradeep Samarasekere
  • Systems for recovering rare earth elements
    Patent number: 10196709
    Abstract: Methods and systems for recovering or extracting rare earth elements under mild conditions include subjecting a material including rare earth element to a rare earth element crystallization medium under solvothermal conditions sufficient to form rare earth element crystals capable of gravity separation and purification.
    Type: Grant
    Filed: May 6, 2016
    Date of Patent: February 5, 2019
    Assignee: THE UNIVERSITY OF HOUSTON SYSTEM
    Inventors: Allan J. Jacobson, Pradeep Samarasekere
  • AN IMPROVED PROCESS FOR THE RECOVERY OF RARE EARTH METALS FROM PERMANENT MAGNETS
    Publication number: 20180202025
    Abstract: Systems and methods for recovering rare earth metals from rare earth metal-containing magnets includes fragmenting or commutating the magnets, contacting the commutated magnets with a mixture of low molecular weight carboxylic acids such as formic acid and water, and removing or extracting non-rare earth metal carboxylate phases such as an iron carboxylate (formate) phase from a rare earth metal carboxylate (formate) phase, using a solvent such as water.
    Type: Application
    Filed: July 11, 2015
    Publication date: July 19, 2018
    Inventors: Allan J. Jacobson, Pradeep Samarasekere
  • SYSTEMS FOR RECOVERING RARE EARTH ELEMENTS
    Publication number: 20160319396
    Abstract: Methods and systems for recovering or extracting rare earth elements under mild conditions include subjecting a material including rare earth element to a rare earth element crystallization medium under solvothermal conditions sufficient to form rare earth element crystals capable of gravity separation and purification.
    Type: Application
    Filed: May 6, 2016
    Publication date: November 3, 2016
    Inventors: Allan J. Jacobson, Pradeep Samarasekere
  • Methods and systems for recovering rare earth elements
    Patent number: 9376735
    Abstract: Methods and systems for recovering or extracting rare earth elements under mild conditions include subjecting a material including rare earth element to a rare earth element crystallization medium under solvothermal conditions sufficient to form rare earth element crystals capable of gravity separation and purification.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: June 28, 2016
    Assignee: UNIVERSITY OF HOUSTON SYSTEM
    Inventors: Allan J. Jacobson, Pradeep Samarasekere
  • METHODS AND SYSTEMS FOR RECOVERING RARE EARTH ELEMENTS
    Publication number: 20140311294
    Abstract: Methods and systems for recovering or extracting rare earth elements under mild conditions include subjecting a material including rare earth element to a rare earth element crystallization medium under solvothermal conditions sufficient to form rare earth element crystals capable of gravity separation and purification.
    Type: Application
    Filed: March 14, 2014
    Publication date: October 23, 2014
    Applicant: The University of Houston System
    Inventors: Allan J. Jacobson, Pradeep Samarasekere