Patents by Inventor Ralf M. Paehl

Ralf M. Paehl 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).

  • Publication number: 20180338564
    Abstract: A method of forming an arch member comprising an arch member body and an arch member coupling integral with the body, comprising: providing a substrate comprising a resilient material; and removing a portion of the substrate to form the arch member. The arch member body including a cross-sectional geometry that varies along a length of the body. Also a method of designing an orthodontic appliance comprising: providing a proposed specification of the orthodontic appliance, wherein the orthodontic appliance comprises an arch member comprising an arch member body and an arch member coupling integral with the body, and a set of anchors, providing a first digital image representing a first dental arrangement associated with the orthodontic appliance; deriving a target digital image representing a target dental arrangement; revising the proposed specification of the orthodontic appliance based in part on the target digital image; and forming the orthodontic appliance based on the revised proposed specification.
    Type: Application
    Filed: March 9, 2016
    Publication date: November 29, 2018
    Inventors: Todd I. Oda, Lee C. Yick, David K. Cinader, Jr., Richard E. Raby, Ralf M. Paehl
  • Publication number: 20180325627
    Abstract: An orthodontic bracket having a bracket pad (2), and a bracket body (1) extending from the bracket pad. The bracket has a slot (4) for receiving an orthodontic archwire. The slot has a proximal slot side face (4a), a distal side face (4b) and a slot ground face (4c). The bracket has at least one archwire support structure (5a, 5b) that forms a support surface (6a, 6b) in a plane of the slot ground face. The support surface is spaced from the slot ground face. The archwire support structure forms a flat and protrudes in a dimention generally parallel to a slot cross axis. The invention help maximizing the tip control in an orthodontic treatment.
    Type: Application
    Filed: January 23, 2017
    Publication date: November 15, 2018
    Inventors: Ralf M. Paehl, Dietmar Blees
  • Patent number: 10064704
    Abstract: A method of making customized orthodontic brackets. The method has steps of providing a plurality of customized orthodontic bracket precursors, providing one or more support structures, positioning the bracket precursors by means of the support structure(s) in a machining device and using the machining device to provide an archwire slot in each bracket precursor by material removal with the archwire slots aligned along a common path with each other. The invention helps minimizing efforts in the manufacturing and provides the brackets with a precise archwire slot.
    Type: Grant
    Filed: December 4, 2014
    Date of Patent: September 4, 2018
    Assignee: 3M Innovative Properties Company
    Inventors: Ralf M. Paehl, Ralf Schlimper
  • Patent number: 9949804
    Abstract: Method of making a customized orthodontic bracket. A bracket receiving area is determined on a three-dimensional tooth model of a patient's tooth, and a bracket base is provided with a tooth-facing surface that is shaped according to the shape of the bracket receiving area. An outline of a bracket head is determined on the tooth model, and the bracket head is provided with a bracket head surface that is shaped according to the shape within the bracket head outline. The bracket has an outer surface with a shape corresponding to the natural shape of the patient's tooth, which helps to minimize discomfort during orthodontic treatment with the brackets.
    Type: Grant
    Filed: August 13, 2014
    Date of Patent: April 24, 2018
    Assignee: 3M Innovative Properties Company
    Inventors: Ralf Schlimper, Ralf M. Paehl
  • Publication number: 20180049847
    Abstract: Various embodiments of an orthodontic appliance and method for forming such appliance are disclosed. The appliance can include a first anchor and a second anchor each including an anchor coupling and a base adapted to connect the respective anchor to a surface of a first tooth and a second tooth respectively. The appliance can also include an arch member including an arch member body and first and second arch member couplings integral with the body, the arch member body including a cross-sectional geometry that varies along a length of the body. The first arch member coupling can be releasably connectable to the anchor coupling of the first anchor and the second arch member coupling can be releasably connectable to the anchor coupling of the second anchor. The arch member body can include a first nonlinear portion between the first arch member coupling and the second arch member coupling.
    Type: Application
    Filed: March 9, 2016
    Publication date: February 22, 2018
    Inventors: Todd I. ODA, Lee C. YICK, David K. CINADER, JR., Richard E. RABY, Ralf M. PAEHL, Michael K. DOMROESE
  • Publication number: 20180021108
    Abstract: Various embodiments of an orthodontic appliance and method of forming such appliance are disclosed. In one or more embodiments, the orthodontic appliance can include an arch member including an arch member body and an arch member coupling connected to the body. The orthodontic appliance can also include an anchor including an anchor coupling and a base adapted to connect the anchor to a surface of a tooth. The arch member coupling can be releasably connectable to the anchor coupling, and the anchor can be adapted for displacement relative to the arch member body when the anchor is connected to the surface of the tooth and the arch member coupling is connected to the anchor coupling.
    Type: Application
    Filed: March 7, 2016
    Publication date: January 25, 2018
    Inventors: David K. Cinader, Jr., Ralf M. Paehl, Michael K. Domroese, Gopal B. Haregoppa, James D. Hansen
  • Publication number: 20180014916
    Abstract: Various embodiments of an orthodontic appliance and method of forming such appliance are disclosed. In one or more embodiments, the orthodontic appliance can include an arch member including an arch member body and an arch member coupling connected to the body. The orthodontic appliance can also include an anchor including an anchor coupling and a base adapted to connect the anchor to a surface of a tooth. The arch member coupling can be releasably connectable to the anchor coupling, and the anchor can be adapted for displacement relative to the arch member body when the anchor is connected to the surface of the tooth and the arch member coupling is connected to the anchor coupling.
    Type: Application
    Filed: March 7, 2016
    Publication date: January 18, 2018
    Inventors: David K. Cinader, JR., Ralf M. Paehl, Michael K. Domroese, Gopal B. Haregoppa, James D. Hansen
  • Publication number: 20170209241
    Abstract: A method of preparing an orthodontic bracket. Such an orthodontic bracket has a bracket bonding pad and a bracket body with a bracket slot. The method has steps of providing a precursor of an orthodontic bracket into a machine for modifying the shape of the orthodontic bracket precursor. The orthodontic bracket precursor has an alignment structure of a pre-determined geometry. Further the alignment structure and the bracket slot are spatially arranged relative to each other at a pre-determined distance and orientation. The method further has the steps of aligning the orthodontic bracket precursor based on the alignment structure and embedding the orthodontic bracket precursor at least partially in a liquid. The liquid is cause to solidify and thereby the orthodontic bracket precursor is retained in position. The so retained orthodontic bracket precursor is changed in shape.
    Type: Application
    Filed: June 4, 2015
    Publication date: July 27, 2017
    Inventors: Ralf M. Paehl, Thomas Weise
  • Publication number: 20170202643
    Abstract: An orthodontic ligature for securing an orthodontic archwire to an orthodontic bracket. The orthodontic ligature is formed of a resilient band which forms a flap. The flap forms a grip portion. The resilient band defines a non-circular hole having a major dimension along the direction in which the grip portion extends. The invention provides an easy to use orthodontic ligature which further is maximized in durability.
    Type: Application
    Filed: July 14, 2015
    Publication date: July 20, 2017
    Inventors: Ralf M. Paehl, Barbara Andrea Thalheim
  • Publication number: 20160310239
    Abstract: A method of making a transfer tray includes providing a physical mockup having a shape that corresponds to a positive shape of a patient's dental arch and a positive shape of one or more bracket analogs. A transfer tray may be formed over the physical mockup, with the transfer tray representing a negative replica of at least a portion of the mockup. One or more receptacles are accordingly formed in the ray, each receptacle approximating a least a portion of the shape of a bracket analog. A bracket associated with a bracket analog is placed into a receptacle of the one or more receptacles and a filler material is introduced into at least one receptacle.
    Type: Application
    Filed: December 10, 2014
    Publication date: October 27, 2016
    Inventors: Ralf M. Paehl, Dietmar Blees
  • Publication number: 20160302891
    Abstract: The present disclosure provides an assembly and system allowing for secure use of an orthodontic auxiliary, particularly a bite corrector, with lingually bonded appliance systems. In one aspect, the disclosure features an orthodontic assembly including a banded tube, a force module, a connector coupling the force module to the tube, and an attachment device secured to the labial surface of an anterior tooth and connected to mesial, outer end of the force module.
    Type: Application
    Filed: December 2, 2014
    Publication date: October 20, 2016
    Inventor: Ralf M. Paehl
  • Publication number: 20160302884
    Abstract: A method of making customized orthodontic brackets. The method has steps of providing a plurality of customized orthodontic bracket precursors, providing one or more support structures, positioning the bracket precursors by means of the support structure(s) in a machining device and using the machining device to provide an archwire slot in each bracket precursor by material removal with the archwire slots aligned along a common path with each other. The invention helps minimizing efforts in the manufacturing and provides the brackets with a precise archwire slot.
    Type: Application
    Filed: December 4, 2014
    Publication date: October 20, 2016
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Ralf M. Paehl, Ralf Schlimper
  • Publication number: 20160199154
    Abstract: A method of making a customized orthodontic bracket (20) which comprises a bracket base for attaching the bracket (20) at a patient's tooth (200), a bracket body with a bracket head, and an archwire slot. According to the method a three-dimensional tooth model representing the shape of at least part of a patient's tooth (200) is provided. A bracket receiving area is determined on the tooth model, and the bracket base is provided with a tooth-facing surface that is shaped according to the shape of the bracket receiving area. Further an outline of the bracket head is determined on the tooth model, and the bracket head is provided with a bracket head surface (26a, 26a?) that is shaped according to the shape within the bracket head outline. Thus a bracket (20) is provided which has an outer tongue-facing or cheek-facing surface of a shape corresponding to the natural shape of the tooth the bracket is attached to. The disclosure helps minimizing any discomfort during an orthodontic treatment with the brackets.
    Type: Application
    Filed: August 13, 2014
    Publication date: July 14, 2016
    Inventors: Ralf Schlimper, Ralf M. Paehl
  • Publication number: 20150313687
    Abstract: A method of making a physical mockup the method comprises the steps of providing a virtual dental arch, a virtual set of orthodontic brackets for the virtual dental arch and a virtual set of analogs. Each analog is associated with a virtual bracket of the virtual set of brackets and the shape of at least one of the analogs differs from the shape of the associated bracket. The method further comprises the steps of providing a virtual mockup in which the virtual dental arch and the set of virtual analogs are merged, and manufacturing the physical mockup based on the virtual mockup. The physical mockup represents a shape composed of the shape the dental arch and the shape of the set of analogs. The invention facilitates bonding of brackets to a patent's teeth.
    Type: Application
    Filed: December 4, 2013
    Publication date: November 5, 2015
    Inventors: Dietmar Blees, Ralf M. Paehl, Ralf Schlimper
  • Publication number: 20140154637
    Abstract: Provided are customized archwires that facilitate wire insertion into fixed appliances and sliding mechanics during the course of orthodontic treatment. These archwires are harmonized with lingual appliances by modifying the archwire shape to alleviate the adverse effects of bends and archwire length discrepancy while maintaining the overall archwire shape. This in turn can be accomplished by selecting one or more segments of an archwire shape from a library, strategically adjusting arch length, performing morphing or smoothing operations on a wire configuration intended for final occlusion, and combinations thereof.
    Type: Application
    Filed: July 17, 2012
    Publication date: June 5, 2014
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: James D. Hansen, Sung Kim, Ralf M. Paehl, Philip P. Soo
  • Patent number: D768863
    Type: Grant
    Filed: June 10, 2015
    Date of Patent: October 11, 2016
    Assignee: 3M Innovative Properties Company
    Inventors: Ralf M. Paehl, Barbara Andrea Thalheim, Thomas Weise