Patents by Inventor Janet Louise Markham

Janet Louise Markham 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 microlenses
    Patent number: 5718830
    Abstract: A method for making a microlens comprising the steps of uniformly distributing a volume of Poly(methylmethacrylate) (PMMA) across a major surface of a substrate, hardening the PMMA layer on the substrate surface, patterning the PMMA layer and forming patterned PMMA and reflowing the patterned PMMA to form at least one microlens on the substrate.
    Type: Grant
    Filed: February 15, 1996
    Date of Patent: February 17, 1998
    Assignee: Lucent Technologies Inc.
    Inventors: Charles George Hlinka, Janet Louise Markham, Casimir Roman Nijander, Keith Owen Mersereau, Yiu-Huen Wong