Patents by Inventor Robert J. Dvorak

Robert J. Dvorak 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).

  • Bag for carrying concrete finishing tools
    Patent number: 8016173
    Abstract: An apparatus for carrying concrete finishing tools comprised of: a front panel, a rear panel, first and second side panels, and a bottom in which the front panel, rear panel, side panels, and bottom form an inner compartment with having an opening to allow access to the inner compartment, a flap extending over the opening, a locking mechanism for temporarily securing the flap to the front panel, at least one shoulder strap to allow the user to carry the apparatus without using their hand(s), and a divider separating the inner compartment into first and second portions.
    Type: Grant
    Filed: January 17, 2008
    Date of Patent: September 13, 2011
    Inventor: Robert J. Dvorak
  • Bag for Carrying Concrete Finishing Tools
    Publication number: 20080173682
    Abstract: An apparatus for carrying concrete finishing tools comprised of: a front panel, a rear panel, first and second side panels, and a bottom in which the front panel, rear panel, side panels, and bottom form an inner compartment with having an opening to allow access to the inner compartment, a flap extending over the opening, a locking mechanism for temporarily securing the flap to the front panel, at least one shoulder strap to allow the user to carry the apparatus without using their hand(s), and a divider separating the inner compartment into first and second portions.
    Type: Application
    Filed: January 17, 2008
    Publication date: July 24, 2008
    Inventor: Robert J. Dvorak
  • Backpack for concrete tools
    Patent number: D553350
    Type: Grant
    Filed: March 10, 2006
    Date of Patent: October 23, 2007
    Inventor: Robert J. Dvorak