Patents by Inventor Zhongyu YAN

Zhongyu YAN 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).

  • Ultrasonic hand piece
    Patent number: 9283113
    Abstract: A surgical hand piece comprises a generally cylindrical horn with a flange on one end. The flange has a central hub and first and second protruding sections. First and second polarized piezoelectric crystals are held against the flange such that rotative or torsional motion is induced in the horn.
    Type: Grant
    Filed: May 22, 2014
    Date of Patent: March 15, 2016
    Assignee: Novartis AG
    Inventors: James Chon, John Zhongyu Yan
  • ULTRASONIC HAND PIECE
    Publication number: 20150335483
    Abstract: A surgical hand piece comprises a generally cylindrical horn with a flange on one end. The flange has a central hub and first and second protruding sections. First and second polarized piezoelectric crystals are held against the flange such that rotative or torsional motion is induced in the horn.
    Type: Application
    Filed: May 22, 2014
    Publication date: November 26, 2015
    Applicant: NOVARTIS AG
    Inventors: JAMES CHON, JOHN ZHONGYU YAN