Patents by Inventor Ralf Kuerschner

Ralf Kuerschner 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).

  • Device for storing and mixing pasty materials
    Patent number: 7172066
    Abstract: The invention relates to a device for storing and mixing especially pasty materials, preferably dental materials, such as filler materials. The invention comprises at least one compartment (7) that receives the substance, said at least one compartment (7) being formed by sealing (3) a base film (1) and a cover film (2), which can be detached from each other by peeling.
    Type: Grant
    Filed: May 4, 2001
    Date of Patent: February 6, 2007
    Assignee: 3M ESPE AG
    Inventors: Marc Peuker, Ralf Kuerschner, Birgit Koenig, Mathias Bertl, Markus Roepke
  • Device for storing and mixing pasty materials
    Publication number: 20040029077
    Abstract: The invention relates to a device for storing and mixing especially pasty materials, preferably dental materials, such as filler materials. The invention comprises at least one compartment (7) that receives the substance, said at least one compartment (7) being formed by sealing (3) a base film (1) and a cover film (2), which can be detached from each other by peeling.
    Type: Application
    Filed: July 24, 2003
    Publication date: February 12, 2004
    Inventors: Marc Peuker, Ralf Kuerschner, Birgit Koenig, Mathias Bertl, Markus Roepke
  • Photopolymerization apparatus
    Patent number: 6159005
    Abstract: An apparatus for photopolymerizing synthetic materials, specifically dental materials containing camphor quinone or phosphine oxide as a photo-initiator, includes a light source constituted by a semiconductor base solid-state radiation emitter 12 which emits in the blue spectral range. Since the radiation emitter emits in a small useful spectral range only, any heat radiation is avoided. The overall device is formed as a small, light-weight and handy device with a built-in battery 15. The solid-state radiation emitter 12, which is preferably operated in the light emitting diode (LED) mode, may be arranged directly on the tip 20 of the apparatus which can be directed toward the treatment site.
    Type: Grant
    Filed: May 15, 1998
    Date of Patent: December 12, 2000
    Assignee: Espe Dental AG
    Inventors: Wolf-Dietrich Herold, Ralf Kuerschner, Peter Koran