Patents by Inventor Andreas M. Koehler

Andreas M. Koehler 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).

  • Beam Redirecting
    Patent number: 4812658
    Abstract: A beam is redirected from an initial direction lying along an initial axis to a final direction lying in a plane which intersects the initial axis (the final direction being other than radially away from the axis) by first redirecting the beam from the initial direction to an intermediate direction lying in the plane, and then redirecting the beam within the plane from the intermediate direction to the final direction.
    Type: Grant
    Filed: July 23, 1987
    Date of Patent: March 14, 1989
    Assignee: President and Fellows of Harvard College
    Inventor: Andreas M. Koehler