Patents by Inventor Nelson Chinedu Okafo

Nelson Chinedu Okafo 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).

  • Window fan security system
    Patent number: 7855641
    Abstract: A window fan security system comprises a window fan housing, fan assembly, motion detector, audible alarm, light, and control panel, whereby the system is placed in a window, and when motion is detected proximate to the exterior of the window an alarm and/or light is triggered, whereby a would-be intruder is detected and deterred.
    Type: Grant
    Filed: August 6, 2008
    Date of Patent: December 21, 2010
    Inventor: Nelson Chinedu Okafo