Patents by Inventor Athanasios Karamalidis

Athanasios Karamalidis 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).

  • Functionalized adsorbents for the recovery of rare earth elements from aqueous media
    Patent number: 12624415
    Abstract: The disclosure relates to the design and synthesis of selected ligands, dendrimers, polymers and other solid phase substrates for selective chelation of rare earth elements (i.e. lanthanides), and use of those selective ligands for synthesis of resins, polymers and other types of solid supports for separation and recovery of lanthanides from aqueous media. Recovery of critical elements from aqueous media occurs in a simple two-step process: pre-concentration of REE on the adsorbent and recovery by acid elution. The present invention can be used for design of selective ligands immobilized on solid substrates for extraction of various constituents, such as lanthanides, actinides, radionuclides, trace metals, etc., from aqueous media.
    Type: Grant
    Filed: October 13, 2016
    Date of Patent: May 12, 2026
    Assignee: CARNEGIE MELLON UNIVERSITY, a Pennsylvania Non-Profit Corporation
    Inventors: Athanasios Karamalidis, Newell R. Washburn, Clinton W. Noack, Kedar Perkins, David A. Dzombak
  • Functionalized Adsorbents for the Recovery of Rare Earth Elements from Aqueous Media
    Publication number: 20170101698
    Abstract: The disclosure relates to the design and synthesis of selected ligands, dendrimers, polymers and other solid phase substrates for selective chelation of rare earth elements (i.e. lanthanides), and use of those selective ligands for synthesis of resins, polymers and other types of solid supports for separation and recovery of lanthanides from aqueous media. Recovery of critical elements from aqueous media occurs in a simple two-step process: pre-concentration of REE on the adsorbent and recovery by acid elution. The present invention can be used for design of selective ligands immobilized on solid substrates for extraction of various constituents, such as lanthanides, actinides, radionuclides, trace metals, etc., from aqueous media.
    Type: Application
    Filed: October 13, 2016
    Publication date: April 13, 2017
    Applicant: CARNEGIE MELLON UNIVERSITY, a Pennsylvania Non-Profit Corporation
    Inventors: Athanasios Karamalidis, Newell R. Washburn, Clinton W. Noack, Kedar Perkins, David A. Dzombak