Patents by Inventor Radu Cristea

Radu Cristea 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).

  • Optical-electronic system for the identification of a retro-reflective label
    Patent number: 4257669
    Abstract: The invention refers to an optical-electronic system for the automatic identification of a retroreflective label attached to a car, container, industrial product, etc., in motion or at rest.To accomplish this end, two optical systems have been used, of which one emits light and the other receives light reflected by the label.The axes of the two systems are parallel and the lenses are tangent to each other, so that the angle between the incident and reflected beams on the retroreflective label are as small as possible.
    Type: Grant
    Filed: June 5, 1979
    Date of Patent: March 24, 1981
    Assignee: Institutul de Cergetari s Proiectari Technologice in Transporturi
    Inventors: Ionel R. Scorteanu, Emil Spirea, Radu Cristea