Patents by Inventor Alfred Friedrich Mayr

Alfred Friedrich Mayr 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).

  • Anchor with spreading elements
    Patent number: 6164884
    Abstract: The novel anchor has a neck portion formed with an opening for inserting a screw into the anchor, a head portion formed with an annular, circumferentially closed collar, and spreading elements connecting the neck portion with the head portion. Radially extending longitudinal webs connect the spreading element with the collar and they space the collar from the spreading elements.
    Type: Grant
    Filed: August 17, 1999
    Date of Patent: December 26, 2000
    Inventor: Alfred Friedrich Mayr