Patents by Inventor Daniel P. Woodruff

Daniel P. Woodruff 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).

  • Display panel filter for connection to a display panel
    Publication number: 20030214461
    Abstract: The present invention provides a device in the form of a filter which is useable in conjunction with a plasma display panel, which is applied to the front face of a display, and which functions to reduce reflection after assembly to acceptable levels, to increase contrast enhancement ratios, to reduce EMI emissions to levels which comply with consumer safety regulations and with military and aircraft standards and to reduce infrared transmission in the 800 nm-1000 nm range to a level which does not interfere with IR remote control operation. The present invention also relates to a method of making such a plasma display panel filter and device.
    Type: Application
    Filed: September 10, 2001
    Publication date: November 20, 2003
    Inventors: Daniel P. Woodruff, Jeffrey L. Kokoschke
  • Display panel filter and method of making the same
    Patent number: 6490091
    Abstract: The present invention provides a device in the form of a filter which is useable in conjunction with a plasma display panel and which functions to reduce reflection after assembly to acceptable levels, to increase contrast enhancement ratios, to reduce EMI emissions to levels which comply with consumer safety and other regulations and standards and to reduce infrared transmission in the 800 nm-1000 nm range to a level which does not interfere with IR remote control operation. The present invention also relates to a method of making such a plasma display panel filter.
    Type: Grant
    Filed: January 19, 2000
    Date of Patent: December 3, 2002
    Assignee: Viratec Thin Films, Inc.
    Inventors: Daniel P. Woodruff, Chad J. Carter, Joseph W. Chavis
  • Display panel filter and method of making the same
    Patent number: 6469685
    Abstract: The present invention provides a device in the form of a single filter which is useable in conjunction with a plasma display panel and which functions to reduce reflection after assembly to acceptable levels, to increase contrast enhancement ratios, to reduce EMI emissions to levels which comply with consumer safety regulations and with military and aircraft standards and to reduce infrared transmission in the 800 nm-1000 nm range to a level which does not interfere with IR remote control operation. The present invention also relates to a method of making such a plasma display panel filter.
    Type: Grant
    Filed: June 23, 1998
    Date of Patent: October 22, 2002
    Assignee: Viratec Thin Films, Inc.
    Inventors: Daniel P. Woodruff, Bruce E. Kuhlmann, Jesse D. Wolfe
  • Display panel filter for connection to a display panel
    Publication number: 20020075203
    Abstract: The present invention provides a device in the form of a filter which is useable in conjunction with a plasma display panel, which is applied to the front face of a display, and which functions to reduce reflection after assembly to acceptable levels, to increase contrast enhancement ratios, to reduce EMI emissions to levels which comply with consumer safety regulations and with military and aircraft standards and to reduce infrared transmission in the 800 nm-1000 nm range to a level which does not interfere with IR remote control operation. The present invention also relates to a method of making such a plasma display panel filter and device.
    Type: Application
    Filed: September 10, 2001
    Publication date: June 20, 2002
    Inventors: Daniel P. Woodruff, Jeffrey L. Kokoschke
  • Display panel filter connection to a display panel
    Patent number: 6353501
    Abstract: The present invention provides a device in the form of a filter which is useable in conjunction with a plasma display panel, which is applied to the front face of a display, and which functions to reduce reflection after assembly to acceptable levels, to increase contrast enhancement ratios, to reduce EMI emissions to levels which comply with consumer safety or other governmental or other regulations or standards and to reduce infrared transmission in the 800 nm-1000 nm range to a level which does not interfere with IR remote control operation. The present invention also relates to a method of making such a plasma display panel filter and device.
    Type: Grant
    Filed: January 19, 2000
    Date of Patent: March 5, 2002
    Assignee: Viratec Thin Films, Inc.
    Inventors: Daniel P. Woodruff, Bruce E. Kuhlmann