Patents by Inventor Kirk K. S. Hwang

Kirk K. S. Hwang 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 and apparatus for making optical devices
    Patent number: 4786444
    Abstract: An apparatus and method is described which is useful in manufacturing molded optical devices. The apparatus and method provide automatic alignment of the mold elements so that cylinder and prism free lenses are provided.
    Type: Grant
    Filed: June 1, 1987
    Date of Patent: November 22, 1988
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Kirk K. S. Hwang