Patents by Inventor Ulrich Sotrkel

Ulrich Sotrkel 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).

  • Fracture resistant brush head
    Patent number: 8875336
    Abstract: This application relates to electric toothbrushes and in particular to a brush section for an electric toothbrush. The brush section may include static contact elements and movable contact elements to perform a cleaning operation. A head portion of the brush section is resistant to fractures or other material damage which might result from impacts, such as for example caused by dropping the toothbrush. It is structured to transmit forces from the impact away from an interior region of the head portion, to pass through the side portions of the head portion.
    Type: Grant
    Filed: April 9, 2013
    Date of Patent: November 4, 2014
    Assignee: Braun GmbH
    Inventors: Thomas Fritsch, Ulrich Sotrkel