Patents by Inventor Derrick Evans

Derrick Evans 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).

  • Portable self-defense device
    Patent number: 7676972
    Abstract: A non-lethal self-defense device that ejects two electrically charged streams of conductive fluid at a biological target for a period of time sufficient to have the liquid contacting both the target and the electrically charged device until incapacitation of the target occurs.
    Type: Grant
    Filed: January 18, 2008
    Date of Patent: March 16, 2010
    Inventors: Duane Smith, Derrick Evans
  • PORTABLE SELF-DEFENSE DEVICE
    Publication number: 20090183413
    Abstract: A non-lethal self-defense device that ejects two electrically charged streams of conductive fluid at a biological target for a period of time sufficient to have the liquid contacting both the target and the electrically charged device until incapacitation of the target occurs.
    Type: Application
    Filed: January 18, 2008
    Publication date: July 23, 2009
    Inventors: Duane Smith, Derrick Evans