Patents by Inventor Todd M. Blacksher

Todd M. Blacksher 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).

  • Switched, dual helical, retractable, dual band antenna for cellular communications
    Patent number: 6249257
    Abstract: A switched, dual helical, retractable, dual band antenna for a cellular communication device comprising a device which functions at two specific frequency bands when in the retracted mode and which functions at two specific frequency bands when in the extended mode. The antenna includes an elongated radiator which is in circuit when the antenna is in its extended position and includes inner and outer helical radiators which are in circuit when the antenna is in the retracted mode.
    Type: Grant
    Filed: July 13, 2000
    Date of Patent: June 19, 2001
    Assignee: Centurion Wireless Technologies, Inc.
    Inventors: Jon J. Powles, Todd M. Blacksher
  • Dual band antenna for cellular communications
    Patent number: 6198443
    Abstract: A switched, dual helical, retractable, dual band antenna for a cellular communication device comprising a device which functions at two specific frequency bands when in the retracted mode and which functions at two specific frequency bands when in the extended mode. The antenna includes an elongated radiator which is in circuit when the antenna is in its extended position and includes inner and outer helical radiators which are in circuit when the antenna is in the retracted mode.
    Type: Grant
    Filed: July 30, 1999
    Date of Patent: March 6, 2001
    Assignee: Centurion Intl., Inc.
    Inventors: Jon J. Powles, Todd M. Blacksher