Patents by Inventor Stefan Albrecht Dag

Stefan Albrecht Dag 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).

  • Patent number: 8747017
    Abstract: A resilient inflatable delineator pole. The delineator pole can include an elongated body enclosing an interior chamber, a flap disposed at a bottom end of the body and having an aperture defined therein, a retention structure for retaining a lower portion of the body within a granular medium, at least one valve disposed on the elongated body and in communication with the interior chamber, and a protective sleeve enclosing a portion of the elongated body.
    Type: Grant
    Filed: February 10, 2012
    Date of Patent: June 10, 2014
    Inventor: Stefan Albrecht Dag
  • Publication number: 20120269575
    Abstract: A resilient inflatable delineator pole. The delineator pole can include an elongated body enclosing an interior chamber, a flap disposed at a bottom end of the body and having an aperture defined therein, a retention structure for retaining a lower portion of the body within a granular medium, at least one valve disposed on the elongated body and in communication with the interior chamber, and a protective sleeve enclosing a portion of the elongated body.
    Type: Application
    Filed: February 10, 2012
    Publication date: October 25, 2012
    Inventor: Stefan Albrecht Dag
  • Publication number: 20080170386
    Abstract: Take three sheets of any material. Sheets can be cut into any shape, utilizing any shape. In middle sheet cut out channels/slots/plenum to accommodate electrical wiring. In top sheet cut out holes through which wiring will be threaded from one electrical connection to another. Holes allow access to wiring and allowing wires to be connected to the electrical support for each light/light bulb. Sandwich all three sheets together to create a rigid platform. Dependent on material selected, grounding of circuitry may be required through alternate means. Cut out holes in lower sheet to accommodate optional [amended 6/29/2007] downward facing light on a separate circuit.
    Type: Application
    Filed: January 17, 2007
    Publication date: July 17, 2008
    Inventor: Stefan Albrecht Dag
  • Patent number: D639415
    Type: Grant
    Filed: January 6, 2007
    Date of Patent: June 7, 2011
    Inventor: Stefan Albrecht Dag