Patents by Inventor Ortwin W. Groh

Ortwin W. Groh 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).

  • Method and apparatus for aligning a trailer hitch
    Patent number: 7744109
    Abstract: The present invention relates to a method and apparatus for assisting a driver of a towing vehicle to reverse the vehicle into alignment and proximity with a trailer, so that the towing vehicle and the trailer can be easily hitched together. The invention includes a detachable alignment system with a signal device to show a stop point via side mirrors to the driver while he is reversing the vehicle toward the trailer. The invention includes two complementary units respectively releasably attached to the vehicle and trailer, each unit having equal-length transverse support beams that respectively extend beyond the sides of the vehicle and trailer and that have visible markers depending from their distal ends, whereby the markers are visible to the driver via the side view mirrors.
    Type: Grant
    Filed: April 18, 2006
    Date of Patent: June 29, 2010
    Inventor: Ortwin W. Groh
  • Method and apparatus for aligning a trailer hitch
    Publication number: 20090108563
    Abstract: The present invention relates to a method and apparatus for assisting a driver of a towing vehicle to reverse the vehicle into alignment and proximity with a trailer, so that the towing vehicle and the trailer can be easily hitched together. The invention includes a detachable alignment system with a signal device to show a stop point via side mirrors to the driver while he is reversing the vehicle toward the trailer. The invention includes two complementary units respectively releasably attached to the vehicle and trailer, each unit having equal-length transverse support beams that respectively extend beyond the sides of the vehicle and trailer and that have visible markers depending from their distal ends, whereby the markers are visible to the driver via the side view mirrors.
    Type: Application
    Filed: April 18, 2006
    Publication date: April 30, 2009
    Inventor: Ortwin W. Groh