Patents by Inventor Timothy M. Dittrich

Timothy M. Dittrich 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 making modified DTPA-associated organosilica media for use in solid-liquid extraction of rare earth elements
    Patent number: 11959154
    Abstract: A process for making modified diethylenetriaminepentaacetic acid (DTPA)-associated media for use in solid-liquid extraction of rare earth elements is disclosed. The process includes functionalizing DTPA with hydrophobic groups to form modified DTPA; dissolving the modified DTPA into a methanol solution; loading the modified DTPA solution to a solid support; rotating the modified DTPA-loaded solid support to allow for association; and removing the methanol to obtain the modified-DTPA-associated media.
    Type: Grant
    Filed: November 8, 2021
    Date of Patent: April 16, 2024
    Assignee: Wayne State University
    Inventors: Timothy M. Dittrich, Matthew J. Allen, Mohammed Dardona, Jessica L. Hovey
  • PROCESS FOR MAKING MODIFIED DTPA-ASSOCIATED ORGANOSILICA MEDIA FOR USE IN SOLID-LIQUID EXTRACTION OF RARE EARTH ELEMENTS
    Publication number: 20220145422
    Abstract: A process for making modified diethylenetriaminepentaacetic acid (DTPA)-associated media for use in solid-liquid extraction of rare earth elements is disclosed. The process includes functionalizing DTPA with hydrophobic groups to form modified DTPA; dissolving the modified DTPA into a methanol solution; loading the modified DTPA solution to a solid support; rotating the modified DTPA-loaded solid support to allow for association; and removing the methanol to obtain the modified-DTPA-associated media.
    Type: Application
    Filed: November 8, 2021
    Publication date: May 12, 2022
    Inventors: Timothy M. Dittrich, Matthew J. Allen, Mohammed Dardona, Jessica L. Hovey