Patents by Inventor David Figge

David Figge 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: 20240043341
    Abstract: The present invention relates to a ceramic mixture which is suitable for producing moulded articles, preferably dental moulded articles, and to methods for producing the ceramic mixture. The invention also relates to the use of a ceramic mixture for producing moulded articles, preferably dental moulded articles, in particular dental restorations, such as an inlay, onlay, veneer, crown, bracket, bridge, framework, abutment or implant. The invention also relates to methods for producing a moulded article, preferably a dental moulded article comprising applying a ceramic mixture to a carrier or to a positive model, and solidifying the moulded articles thus obtained by gel formation, preferably by means of a standard 3D printer capable of processing paste-like materials. The gel-like moulded article thus obtained can be worked in the gel-like and/or dried state.
    Type: Application
    Filed: December 9, 2021
    Publication date: February 8, 2024
    Inventors: Arthur Bär, Berthold Reusch, David Figge
  • Patent number: 11672632
    Abstract: The present invention relates to a novel multi-layered zirconia dental blank comprising at least two reverse layers. Further, the invention relates to a process for the preparation of such a multi-layered zirconia dental blank. The invention also relates to the use of such a multi-layered zirconia dental blank for the production of a dental article. Preferred dental articles are artificial teeth, inlays, onlays, bridges, crowns, veneers, facings, crown frameworks, bridged frameworks, implants, abutments, copings or orthodontic appliances. Moreover, the invention relates to a process for producing a dental article out of such a multi-layered zirconia dental blank.
    Type: Grant
    Filed: October 5, 2020
    Date of Patent: June 13, 2023
    Assignee: pritidenta GmbH
    Inventors: Berthold Reusch, David Figge
  • Publication number: 20220104925
    Abstract: The present invention relates to a novel multi-layered zirconia dental blank comprising at least two reverse layers. Further, the invention relates to a process for the preparation of such a multi-layered zirconia dental blank. The invention also relates to the use of such a multi-layered zirconia dental blank for the production of a dental article. Preferred dental articles are artificial teeth, inlays, onlays, bridges, crowns, veneers, facings, crown frameworks, bridged frameworks, implants, abutments, copings or orthodontic appliances. Moreover, the invention relates to a process for producing a dental article out of such a multi-layered zirconia dental blank.
    Type: Application
    Filed: October 5, 2020
    Publication date: April 7, 2022
    Inventors: Dr. Berthold Reusch, David Figge
  • Patent number: 10101088
    Abstract: The invention relates to a sintering furnace for components consisting of sintering material, especially dental components and in particular components consisting of ceramic, and a method for sintering such components. The sintering furnace 1 comprises a heatable furnace chamber 2 for the component 9 to be sintered, the furnace chamber 2 having a wall section 6 to be opened for inserting the component 9 to be sintered into the furnace chamber 2. Drive means 10 are provided for mechanized opening and closing of the wall section 6, and a control 11 is provided for the drive means 10 that has an actuation element 12 for the drive means 10. Furthermore, a heating device 5 for the furnace chamber 2 is provided, and the control 11 causes the furnace chamber 2 to be heated. Actuating the control element 12 triggers the loading sequence of the control 11, and the drive means 10 are automatically actuated by the control 11 corresponding to the loading sequence.
    Type: Grant
    Filed: July 24, 2013
    Date of Patent: October 16, 2018
    Assignee: Sirona Dental Systems GMBH
    Inventors: Christian Schmidt, David Figge, Siegfried Gleditzsch, Peter Fornoff
  • Patent number: 9958207
    Abstract: The invention relates to a sintering furnace for components consisting of sintering material, especially dental components and in particular components consisting of ceramic, and a method for sintering such components. The sintering furnace 1 comprises a heatable furnace chamber 2 for the component 9 to be sintered, the furnace chamber 2 having a wall section 6 to be opened for inserting the component 9 to be sintered into the furnace chamber 2. Drive means 10 are provided for mechanized opening and closing of the wall section 6, and a control 11 is provided for the drive means 10 that has an actuation element 12 for the drive means 10. Furthermore, a heating device 5 for the furnace chamber 2 is provided, and the control 11 causes the furnace chamber 2 to be heated. Actuating the control element 12 triggers the loading sequence of the control 11, and the drive means 10 are automatically actuated by the control 11 corresponding to the loading sequence.
    Type: Grant
    Filed: July 24, 2013
    Date of Patent: May 1, 2018
    Assignee: Sirona Dental Systems GmbH
    Inventors: Christian Schmidt, David Figge, Siegfried Gleditzsch, Peter Fornoff
  • Publication number: 20150247672
    Abstract: The invention relates to a sintering furnace for components consisting of sintering material, especially dental components and in particular components consisting of ceramic, and a method for sintering such components. The sintering furnace 1 comprises a heatable furnace chamber 2 for the component 9 to be sintered, the furnace chamber 2 having a wall section 6 to be opened for inserting the component 9 to be sintered into the furnace chamber 2. Drive means 10 are provided for mechanized opening and closing of the wall section 6, and a control 11 is provided for the drive means 10 that has an actuation element 12 for the drive means 10. Furthermore, a heating device 5 for the furnace chamber 2 is provided, and the control 11 causes the furnace chamber 2 to be heated. Actuating the control element 12 triggers the loading sequence of the control 11, and the drive means 10 are automatically actuated by the control 11 corresponding to the loading sequence.
    Type: Application
    Filed: July 24, 2013
    Publication date: September 3, 2015
    Inventors: Christian Schmidt, David Figge, Siegfried Gleditzsch, Peter Fornoff
  • Patent number: 8401690
    Abstract: In a method for processing a blank (1), in which the blank (1) can be densely sintered with shrinkage following machining and machining of the blank (1) is carried out in a machining device (7) allowing for an individual scale-up factor (F) relevant to the blank (1) for compensating for the shrinkage occurring during dense sintering, a linear measurement of the blank (1) is performed in one or more of the dimensions length, width, and height for determining the scale-up factor (F), wherein the measured linear measure (1) bears a known relationship to the scale-up factor (F), the type of blank (1) being known. Linear measurement of the blank (1) can be carried out in the machining device (7).
    Type: Grant
    Filed: October 1, 2010
    Date of Patent: March 19, 2013
    Assignee: Sirona Dental Systems GmbH
    Inventors: Siegfried Gleditzsch, Franz Basler, David Figge
  • Publication number: 20110115210
    Abstract: In a method for processing a blank (1), in which the blank (1) can be densely sintered with shrinkage following machining and machining of the blank (1) is carried out in a machining device (7) allowing for an individual scale-up factor (F) relevant to the blank (1) for compensating for the shrinkage occurring during dense sintering, a linear measurement of the blank (1) is performed in one or more of the dimensions length, width, and height for determining the scale-up factor (F), wherein the measured linear measure (1) bears a known relationship to the scale-up factor (F), the type of blank (1) being known. Linear measurement of the blank (1) can be carried out in the machining device (7).
    Type: Application
    Filed: October 1, 2010
    Publication date: May 19, 2011
    Applicant: SIRONA DENTAL SYSTEMS GMBH
    Inventors: Siegfried Gleditzsch, Franz Basler, David Figge