Patents by Inventor Chang-Fong Lin

Chang-Fong Lin 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).

  • Plural-nibbed writing instrument
    Patent number: D324542
    Type: Grant
    Filed: December 20, 1989
    Date of Patent: March 10, 1992
    Inventor: Chang-Fong Lin
  • Combined ball-point pen and bubble blower
    Patent number: D336659
    Type: Grant
    Filed: January 16, 1992
    Date of Patent: June 22, 1993
    Inventor: Chang-Fong Lin
  • Ball-point pen
    Patent number: D336922
    Type: Grant
    Filed: January 9, 1992
    Date of Patent: June 29, 1993
    Inventor: Chang-Fong Lin
  • Writing instrument cap
    Patent number: D336923
    Type: Grant
    Filed: January 9, 1992
    Date of Patent: June 29, 1993
    Inventor: Chang-Fong Lin