Patents by Inventor Bjorn Ludwig

Bjorn Ludwig 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).

  • Orthodontic diagnostic method
    Patent number: 10165991
    Abstract: The invention relates to an orthodontic diagnostic method wherein at least one initial two-dimensional X-ray image (1) of a first zone (2) of a head (3) is taken. Then at least one three-dimensional X-ray image (4) of a second zone (5) of a dental situation is taken, and the three-dimensional X-ray image (4) is combined with the initial two-dimensional X-ray image (1) using a registration process in order to obtain a full image (8).
    Type: Grant
    Filed: November 25, 2015
    Date of Patent: January 1, 2019
    Assignee: DENTSPLY SIRONA Inc.
    Inventors: Ciamak Abkai, Kai Lindenberg, Björn Ludwig
  • ORTHODONTIC DIAGNOSTIC METHOD
    Publication number: 20170303877
    Abstract: The invention relates to an orthodontic diagnostic method wherein at least one initial two-dimensional X-ray image (1) of a first zone (2) of a head (3) is taken. Then at least one three-dimensional X-ray image (4) of a second zone (5) of a dental situation is taken, and the three-dimensional X-ray image (4) is combined with the initial two-dimensional X-ray image (1) using a registration process in order to obtain a full image (8).
    Type: Application
    Filed: November 25, 2015
    Publication date: October 26, 2017
    Applicant: DENTSPLY SIRONA inc.
    Inventors: Ciamak ABKAL, Kai LINDENBERG, Bjorn LUDWIG
  • Orthodontic Anchoring Screw
    Publication number: 20090240289
    Abstract: An orthodontic anchorage screw (1, 1?, 1?) with a barrel provided with a thread (8) and formed onto a screw head (2) shall guarantee a particularly high and lasting strength after having been put in place in the jaw bone. For this purpose, according to the invention, the thread (8) is designed, viewed along the longitudinal axis of the threaded barrel (4), with at least one non-constant thread parameter.
    Type: Application
    Filed: November 27, 2006
    Publication date: September 24, 2009
    Inventors: Holger Zipprich, Björn Ludwig
  • Orthodontic implant system
    Publication number: 20090081614
    Abstract: Herein is described an orthodontic implant system with a screw implant of elongated body with a first section that is provided with a thread for the anchoring in a jawbone and a second section for protruding from the jawbone and a detachable head to be joined to the screw implant. The head has a recess for slipping onto the second section of the screw implant.
    Type: Application
    Filed: September 12, 2008
    Publication date: March 26, 2009
    Inventors: Rolf Forster, Bjorn Ludwig