Patents by Inventor Dennis Markert

Dennis Markert 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).

  • USB CHARGER FOR COMMERCIAL TRANSPORT VEHICLE
    Publication number: 20080309297
    Abstract: An outlet provides both AC and DC power to at least one device. The outlet includes an input portion adapted to receive a first voltage input and a second voltage input wherein the first voltage input is a variable DC voltage and the second input is AC of a desired voltage and frequency. A converter reduces the first input voltage to a constant DC voltage output effective to power a PED. The outlet has a first receptacle in the form of a USB port to deliver the DC power to the device and a second receptacle to deliver the AC power to the device. A sensing circuit is coupled to the outlet and determines if a source of the second voltage may safely provide the AC power.
    Type: Application
    Filed: May 25, 2007
    Publication date: December 18, 2008
    Inventors: Douglas Brown, Dennis Markert, Jeffrey Jouper, John Lamb
  • USB charger for commercial transport vehicle
    Publication number: 20080001583
    Abstract: An outlet provides both AC and DC power to at least one device. The outlet includes an input portion adapted to receive a first voltage input and a second voltage input wherein the first voltage input is a variable DC voltage and the second input is AC of a desired voltage and frequency. A converter reduces the first input voltage to a constant DC voltage output effective to power a PED. The outlet has a first receptacle in the form of a USB port to deliver the DC power to the device and a second receptacle to deliver the AC power to the device. A sensing circuit is coupled to the outlet and determines if a source of the second voltage may safely provide the AC power.
    Type: Application
    Filed: May 25, 2007
    Publication date: January 3, 2008
    Inventors: Douglas Brown, Dennis Markert, Jeffrey Jouper, John Lamb