Patents by Inventor Sandy S. Yang

Sandy S. Yang 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).

  • Remote controlled refractory gunning apparatus
    Patent number: 5178329
    Abstract: A vertical remote-controlled gunning apparatus having a horizontal nozzle wherein the water supply conduits and material supply conduits are integrated into a mixer-swivel head which controls the swiveling and rotation of said conduit.
    Type: Grant
    Filed: March 28, 1991
    Date of Patent: January 12, 1993
    Assignee: Quigley Inc.
    Inventor: Sandy S. Yang