Patents by Inventor Wilson Hing Wah Ma

Wilson Hing Wah Ma 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).

  • Weight measurement device
    Patent number: D788619
    Type: Grant
    Filed: February 8, 2016
    Date of Patent: June 6, 2017
    Assignee: Welch Allyn, Inc.
    Inventors: David J. Rider, John A. Lane, Hon Kuen Leong, Wilson Hing Wah Ma
  • Medical device
    Patent number: D802768
    Type: Grant
    Filed: February 8, 2016
    Date of Patent: November 14, 2017
    Assignee: Welch Allyn, Inc.
    Inventors: David J. Rider, John A. Lane, Hon Kuen Leong, John R. Vann, Wilson Hing Wah Ma