Patents by Inventor Chandra Hass

Chandra Hass 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).

  • Construction stud layout tool
    Patent number: D314520
    Type: Grant
    Filed: October 11, 1988
    Date of Patent: February 12, 1991
    Inventor: Chandra Hass
  • Stud ladder
    Patent number: D342200
    Type: Grant
    Filed: February 21, 1992
    Date of Patent: December 14, 1993
    Inventor: Chandra Hass