Patents by Inventor Chin-Jen Chen

Chin-Jen Chen 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).

  • Method for making a mold for a lens of single lens glasses having two focal axes
    Patent number: 5488763
    Abstract: A method for making a mold for forming a lens for single lens glasses having two focal axes is provided. The mold consists of a male mold and a female mold. The male mold is made from portions of two conventional male molds to provide a left half portion and a right half portion of a new male mold, each portion having a separate focal axis. Subsequently the left and the right half portions are jointed together to be used with a conventional female mold to produce a lens for single lens glasses having two focal axes.
    Type: Grant
    Filed: April 12, 1994
    Date of Patent: February 6, 1996
    Inventor: Chin-Jen Chen