Patents by Inventor Herbert Schilder

Herbert Schilder 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).

  • Set of endodontic instruments
    Patent number: 5017138
    Abstract: Differences in the diameters of successive cutting instruments, either hand- or engine-powered, within sets of instruments described herein progress sequentially by constant percentages of increase, rather than by constant linear increase as is currently the practice in the dental manufacturing industry.
    Type: Grant
    Filed: May 5, 1989
    Date of Patent: May 21, 1991
    Inventor: Herbert Schilder