Patents by Inventor Alan Tsao

Alan Tsao 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).

  • Patent number: 5033140
    Abstract: A multi-purpose combination tool which resembles a pair of pliers and is capable of performing a number of diverse functions commonly encountered at home and/or in the shop. A tire repair kit incorporated in one of the plier-like handles includes dual punchers, a needle file, a steel rod and a sample piece of rubber.
    Type: Grant
    Filed: September 18, 1990
    Date of Patent: July 23, 1991
    Inventors: Andy Chen, Alan Tsao