Patents by Inventor Charles S. P. Teng

Charles S. P. Teng 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).

  • Pet playhouse
    Patent number: D397524
    Type: Grant
    Filed: June 30, 1997
    Date of Patent: August 25, 1998
    Assignee: Tenwood International, Inc.
    Inventor: Charles S. P. Teng
  • Pet playhouse
    Patent number: D407861
    Type: Grant
    Filed: February 24, 1998
    Date of Patent: April 6, 1999
    Assignee: Tenwood International, Inc.
    Inventor: Charles S. P. Teng