Patents by Inventor Hans C. VON Weissenfluh

Hans C. VON Weissenfluh 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).

  • Angular mold for dental use
    Patent number: 4500288
    Abstract: The mold in question includes a cap (1) of transparent material strengthened by a single or multiple reinforcement (2, 2', 3) of wire or metal strip incorporated in the plastic of the cap. The cap (1) or reinforcement ends above in a stem (1') which makes it possible to grasp the mold and hold it in place for the entire time of polymerization of the filling mastic performed by ultraviolet or visible light rays. This mold is particularly suited for giving the exact shape of the filling of front teeth, both on the right and left side.
    Type: Grant
    Filed: December 30, 1982
    Date of Patent: February 19, 1985
    Assignee: Hawe-Neos Dental Dr. H. v. Weissenfluh S.A.
    Inventor: Hans C. von Weissenfluh
  • Dental matrix band
    Patent number: D253191
    Type: Grant
    Filed: October 31, 1977
    Date of Patent: October 16, 1979
    Assignee: Marvin M. Stark Research Foundation
    Inventors: Marvin M. Stark, Hans C. VON Weissenfluh