Patents by Inventor Youngki Choe

Youngki Choe 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).

  • Acoustic tweezers
    Patent number: 10106397
    Abstract: In some aspects of the disclosure, an apparatus includes an XYZ control stage and an acoustic transducer coupled with the XYZ control stage. The acoustic transducer includes a multi-foci Fresnel lens having multiple focal spots.
    Type: Grant
    Filed: April 23, 2013
    Date of Patent: October 23, 2018
    Assignee: University of Southern California
    Inventors: Eun Sok Kim, Youngki Choe, Jonathan W. Kim, K. Kirk Shung