Patents by Inventor Cornelis J. Van Doorn

Cornelis J. Van Doorn 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 of manufacturing a colour filter
    Patent number: 5279913
    Abstract: In a manufacturing process for color filters wet-chemical fixing and cleaning steps, as well as the use of several (toxic) chemicals can be avoided by using a combined fixing and cleaning step with the aid of UV radiation in an ozonic atmosphere.
    Type: Grant
    Filed: January 2, 1992
    Date of Patent: January 18, 1994
    Assignee: U.S. Philips Corporation
    Inventor: Cornelis J. Van Doorn