Patents by Inventor Helmut Gnagi

Helmut Gnagi 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).

  • Knife for the cryo-ultramicrotomy
    Patent number: 6000309
    Abstract: The knife comprises a block (1) with a front face (3) in which a diamond blade (9) with a frontal surface (10) which is preferably coplanar with the front face (3), is held. The diamond blade (9) has a back surface (11) forming a cutting edge (12) together with the frontal surface (10). A plastic insert (14), preferably of epoxy resin, adjoins the back surface (11) spaced from the cutting edge (12). The insert (14) has a plane upper surface (15) whose plane intersects the frontal surface (10) at an angle of 80.degree. to 87.degree., preferably about 84.degree.. Thereby sectioning and section pick-up under a stereo microscope are facilitated.
    Type: Grant
    Filed: April 30, 1998
    Date of Patent: December 14, 1999
    Assignee: Anton Meyer & Co., AG
    Inventor: Helmut Gnagi