Patents by Inventor Keng-Hsin Wang

Keng-Hsin Wang 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).

  • Hoist scale
    Patent number: D529830
    Type: Grant
    Filed: February 27, 2006
    Date of Patent: October 10, 2006
    Assignee: Charder Electronic Co., LTD
    Inventor: Keng-Hsin Wang
  • Hoist scale
    Patent number: D533097
    Type: Grant
    Filed: February 27, 2006
    Date of Patent: December 5, 2006
    Assignee: Charder Electronic Co., Ltd
    Inventor: Keng-Hsin Wang