Patents by Inventor Rudiger Steffen

Rudiger Steffen 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).

  • Process and apparatus for preventing bird collisions
    Patent number: 4736907
    Abstract: The collision of birds with aircraft is prevented by means of at least one light source installed on an aircraft which produces light flashes. The frequency of the light flashes produced thereby is varied during at least one cycle time period. The frequency of light flashes is advantageously continuously increased one or more times in a range of from approximately 0.1 Hz to 3.0 Hz, and the maximum frequency may then be maintained. Two such light sources are preferably visible to the birds.
    Type: Grant
    Filed: February 11, 1987
    Date of Patent: April 12, 1988
    Inventor: Rudiger Steffen