Patents by Inventor Tun S. Tsing

Tun S. Tsing 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).

  • Loud speaker enclosure
    Patent number: D349704
    Type: Grant
    Filed: November 18, 1992
    Date of Patent: August 16, 1994
    Inventor: Tun S. Tsing
  • Loudspeaker enclosure
    Patent number: D352715
    Type: Grant
    Filed: November 18, 1992
    Date of Patent: November 22, 1994
    Inventor: Tun S. Tsing