Patents by Inventor Chuan Wan

Chuan Wan 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).

  • Football-shaped telescope
    Patent number: D374678
    Type: Grant
    Filed: June 15, 1995
    Date of Patent: October 15, 1996
    Inventors: Jianmin Yang, Chuan Wan
  • Football-shaped binoculars
    Patent number: D374680
    Type: Grant
    Filed: November 6, 1995
    Date of Patent: October 15, 1996
    Inventors: Jianmin Yang, Chuan Wan
  • Spherical binoculars
    Patent number: D397705
    Type: Grant
    Filed: April 18, 1997
    Date of Patent: September 1, 1998
    Inventors: Jianmin Yang, Chuan Wan