Patents by Inventor Hans-Rainer Bleyer

Hans-Rainer Bleyer 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 device for clearing out joints in masonry
    Patent number: 5992404
    Abstract: A process and a device for clearing out joints in masonry is disclosed. The clearing out is effected by producing a groove by high-pressure water jets that are so oriented and guided relative to one another and relative to the desired groove. Further, a groove with a determined cross section of determined width and depth results.
    Type: Grant
    Filed: February 23, 1998
    Date of Patent: November 30, 1999
    Assignee: Jenoptik Aktiengesellschaft
    Inventors: Hans-Rainer Bleyer, Heinz Poppe