Patents by Inventor John L. Langan

John L. Langan 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).

  • Thin film spatial filters
    Patent number: 6208006
    Abstract: Thin film spatial filters are disclosed. The filters are constructed with a continuous thin film of low resistance conductor (for example with a resistance of from 10−2 to 108 Ohms-cm) with plurabilty of resistive elements defining pixels. A thin film of high resistance material is on other side of the pixels in the case of grounded filters. The conductor film provides lateral blurring for image processing.
    Type: Grant
    Filed: July 21, 1998
    Date of Patent: March 27, 2001
    Assignee: Uniax Corporation
    Inventors: Jon S. McElvain, John L. Langan, Alan J. Heeger