Grace C. Sheen

Person

  • Portland, OR, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Electronic eyewear therapy

    • Patent number 10,624,790
    • Issue date Apr 21, 2020
    • IpVenture, Inc.
    • David Chao
    • G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

  • Information Patent Application

    ELECTRONIC EYEWEAR THERAPY

    • Publication number 20150230988
    • Publication date Aug 20, 2015
    • David Chao
    • G02 - OPTICS