Patents by Inventor Youngdon Yi

Youngdon Yi 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).

  • Reinforced electrolyte membrane
    Patent number: 9893373
    Abstract: An electrolyte membrane having a proton conducting polymer reinforced with a nanofiber mat made from a nanofiber comprising a fiber material selected from polymers and polymer blends; wherein the fiber material has a fiber material proton conductivity; wherein the proton conducting polymer has a proton conducting polymer conductivity; and wherein the fiber material proton conductivity is less than the proton conducting polymer conductivity, and methods of making. In some embodiments, the nanofiber further comprises a proton conducting polymer.
    Type: Grant
    Filed: May 18, 2011
    Date of Patent: February 13, 2018
    Assignee: 3M Innovative Properties Company
    Inventors: Michael Andrew Yandrasits, Ji-Hwa Lee, Youngdon Yi, Daniel McGregor Pierpont, Steven Joseph Hamrock, Mark Albert Schonewill
  • REINFORCED ELECTROLYTE MEMBRANE
    Publication number: 20130101918
    Abstract: An electrolyte membrane having a proton conducting polymer reinforced with a nanofiber mat made from a nanofiber comprising a fiber material selected from polymers and polymer blends; wherein the fiber material has a fiber material proton conductivity; wherein the proton conducting polymer has a proton conducting polymer conductivity; and wherein the fiber material proton conductivity is less than the proton conducting polymer conductivity, and methods of making. In some embodiments, the nanofiber further comprises a proton conducting polymer.
    Type: Application
    Filed: May 18, 2011
    Publication date: April 25, 2013
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Michael A. Yandrasits, Ji-Hwa Lee, Youngdon Yi, Daniel M. Pierpont, Steven J. Hamrock, Mark A. Schonewill