Patents by Inventor Ralf Schwarze

Ralf Schwarze 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 for producing a line-shaped weakening by means of lasers
    Patent number: 5882572
    Abstract: A method is described for producing a line-shaped weakening in a flat material by one-sided local removal of the flat material by controllable pulsed laser radiation. The occurring line-shaped weakening is not visible on the surface of the flat material that is not machined and has a reproducible constant breaking resistance.
    Type: Grant
    Filed: September 5, 1997
    Date of Patent: March 16, 1999
    Assignee: Jenoptik Aktiengesellschaft
    Inventors: Walter Lutze, Ralf Schwarze, Frank Schmieder, Wolfgang Schmidt, Rainer Schulze