Patents by Inventor Choongyeop Lee

Choongyeop Lee 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).

  • Method and device for restoring and maintaining superhydrophobicity under liquid
    Patent number: 10125271
    Abstract: A superhydrophobic surface includes a plurality of microfeatures disposed on a substrate and a gas generator disposed within the microfeatures, the gas generator configured to generate a gas within the microfeatures. Gas is generated within the microfeatures when at least a portion of the microfeatures is in a wetted state to restore the microfeatures to a dewetted state. Gas generation is self-regulating in that gas generation automatically starts when a wetted condition exists and stops when sufficient gas has been generated to recover a dewetted state that restores superhydrophobicity.
    Type: Grant
    Filed: March 29, 2016
    Date of Patent: November 13, 2018
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Chang-Jin Kim, Choongyeop Lee
  • METHOD AND DEVICE FOR RESTORING AND MAINTAINING SUPERHYDROPHOBICITY UNDER LIQUID
    Publication number: 20160208110
    Abstract: A superhydrophobic surface includes a plurality of microfeatures disposed on a substrate and a gas generator disposed within the microfeatures, the gas generator configured to generate a gas within the microfeatures. Gas is generated within the microfeatures when at least a portion of the microfeatures is in a wetted state to restore the microfeatures to a dewetted state. Gas generation is self-regulating in that gas generation automatically starts when a wetted condition exists and stops when sufficient gas has been generated to recover a dewetted state that restores superhydrophobicity.
    Type: Application
    Filed: March 29, 2016
    Publication date: July 21, 2016
    Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Chang-Jin Kim, Choongyeop Lee
  • Method and device for restoring and maintaining superhydrophobicity under liquid
    Patent number: 9314818
    Abstract: A superhydrophobic surface includes a plurality of microfeatures disposed on a substrate and a gas generator disposed within the microfeatures, the gas generator configured to generate a gas within the microfeatures. Gas is generated within the microfeatures when at least a portion of the microfeatures is in a wetted state to restore the microfeatures to a dewetted state. Gas generation is self-regulating in that gas generation automatically starts when a wetted condition exists and stops when sufficient gas has been generated to recover a dewetted state that restores superhydrophobicity.
    Type: Grant
    Filed: July 22, 2011
    Date of Patent: April 19, 2016
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Chang-Jin Kim, Choongyeop Lee
  • METHOD AND DEVICE FOR RESTORING AND MAINTAINING SUPERHYDROPHOBICITY UNDER LIQUID
    Publication number: 20130122195
    Abstract: A superhydrophobic surface includes a plurality of microfeatures disposed on a substrate and a gas generator disposed within the microfeatures, the gas generator configured to generate a gas within the microfeatures. Gas is generated within the microfeatures when at least a portion of the microfeatures is in a wetted state to restore the microfeatures to a dewetted state. Gas generation is self-regulating in that gas generation automatically starts when a wetted condition exists and stops when sufficient gas has been generated to recover a dewetted state that restores superhydrophobicity.
    Type: Application
    Filed: July 22, 2011
    Publication date: May 16, 2013
    Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Chang-Jin Kim, Choongyeop Lee