Patents by Inventor Ho M. Yang

Ho M. 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).

  • Sprinkler
    Patent number: 5702056
    Abstract: A sprinkler comprises a hollow box, a first casing and a second casing covering the hollow box, a telescopic pipe disposed in the hollow box longitudinally, and a sprinkling disk disposed on the telescopic pipe. The telescopic pipe has an outer pipe, a first middle pipe in the outer pipe, a second middle pipe in the first middle pipe, and an inner pipe in the second middle pipe. The sprinkling disk has a lower disk and an upper disk.
    Type: Grant
    Filed: July 11, 1996
    Date of Patent: December 30, 1997
    Inventor: Ho-M Yang
  • Lawn sprinkler
    Patent number: D355477
    Type: Grant
    Filed: March 18, 1994
    Date of Patent: February 14, 1995
    Assignee: Samuel S. Yang
    Inventor: Ho M. Yang