Patents by Inventor John E. MacLatchy

John E. MacLatchy 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).

  • Process for preparing a color filter
    Patent number: 5667920
    Abstract: A substrate (typically a solid state imager or a liquid crystal display device) is provided with a filter by forming a layer of photoresist on the substrate, and exposing and developing the photoresist to produce filter elements from the portions of the layer of photoresist remaining after the development. After development of the layer of photoresist, the substrate is treated with a silylation compound capable of cross-linking the photoresist and of promoting adhesion of the photoresist to the substrate. A preferred silylation compound is hexamethylcyclotrisilizane.
    Type: Grant
    Filed: March 11, 1996
    Date of Patent: September 16, 1997
    Assignee: Polaroid Corporation
    Inventors: Carl A. Chiulli, John E. MacLatchy, Harris R. Miller