Patents by Inventor Dmitri Brodkin

Dmitri Brodkin 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: 20190099245
    Abstract: The invention relates to multi-layer oxide ceramic bodies and in particular to presintered multi-layer oxide ceramic blanks and oxide ceramic green bodies suitable for dental applications. These bodies can be thermally densified by further sintering without distortion and are thus particularly suitable for the manufacture of dental restorations. The invention also relates to a process for the manufacture of such multi-layer oxide ceramic bodies as well as to a process for the manufacture of dental restorations using the multi-layer oxide ceramic bodies.
    Type: Application
    Filed: October 23, 2018
    Publication date: April 4, 2019
    Inventors: Frank Rothbrust, Christian Ritzberger, Dmitri Brodkin, Ajmal Khan, Marcel Schweiger
  • Publication number: 20190090996
    Abstract: Lithium silicate materials are described which can be easily processed by machining to dental products without undue wear of the tools.
    Type: Application
    Filed: November 26, 2018
    Publication date: March 28, 2019
    Inventors: Marcel Schweiger, Volker Rheinberger, Harald Bürke, Wolfram Höland, Elke Signer-Apel, Christian Ritzberger, Dmitri Brodkin
  • Patent number: 10136973
    Abstract: Lithium silicate materials are described which can be easily processed by machining to dental products without undue wear of the tools.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: November 27, 2018
    Assignee: Ivoclar Vivadent AG
    Inventors: Marcel Schweiger, Volker Rheinberger, Harald Bürke, Wolfram Höland, Elke Signer-Apel, Christian Ritzberger, Dmitri Brodkin
  • Publication number: 20180170812
    Abstract: Provided are metal oxide ceramic materials and intermediate materials thereof (e.g., nanozirconia gels, nanozirconia green bodies, pre-sintered ceramic bodies, zirconia dental ceramic materials, and dental articles). The nanozirconia gels are formable gels. Also provided are methods of making and using the metal oxide materials and intermediate materials. The nanozirconia gels can be made using, for example, osmotic processing. The nanozirconia gels can be used to make nanozirconia green bodies, pre-sintered ceramic bodies, zirconia dental ceramic materials, and dental article. The nanozirconia green bodies, pre-sintered ceramic bodies, zirconia dental ceramic materials, and dental articles have desirable properties (e.g., optical properties and mechanical properties).
    Type: Application
    Filed: November 20, 2017
    Publication date: June 21, 2018
    Inventors: Wei Xu, Yijun Wang, Dmitri Brodkin
  • Publication number: 20180133112
    Abstract: Zirconia dental ceramics exhibiting opalescence and having a grain size in the range of 10 nm to 300 nm, a density of at least 99.5% of theoretical density, a visible light transmittance at or higher than 45% at 560 nm, and a strength of at least 800 MPa.
    Type: Application
    Filed: January 10, 2018
    Publication date: May 17, 2018
    Inventors: Dmitri Brodkin, Yijun Wang, Ling Tang, Ajmal Khan, Anna B. Verano
  • Patent number: 9918806
    Abstract: Milling strategies for machining dental ceramic materials are provided that reduce milling time while maintaining strength, accuracy and marginal integrity.
    Type: Grant
    Filed: August 14, 2015
    Date of Patent: March 20, 2018
    Assignee: Ivoclar Vivadent AG
    Inventors: Markus Heinz, Klaus Rinner, Georg Gorfer, Marius Aster, Marcel Schweiger, Dmitri Brodkin
  • Patent number: 9822039
    Abstract: Provided are metal oxide ceramic materials and intermediate materials thereof (e.g., nanozirconia gels, nanozirconia green bodies, pre-sintered ceramic bodies, zirconia dental ceramic materials, and dental articles). The nanozirconia gels are formable gels. Also provided are methods of making and using the metal oxide materials and intermediate materials. The nanozirconia gels can be made using, for example, osmotic processing. The nanozirconia gels can be used to make nanozirconia green bodies, pre-sintered ceramic bodies, zirconia dental ceramic materials, and dental article. The nanozirconia green bodies, pre-sintered ceramic bodies, zirconia dental ceramic materials, and dental articles have desirable properties (e.g., optical properties and mechanical properties).
    Type: Grant
    Filed: August 18, 2016
    Date of Patent: November 21, 2017
    Assignee: Ivoclar Vivadent AG
    Inventors: Wei Xu, Yijun Wang, Dmitri Brodkin
  • Patent number: 9820917
    Abstract: Provided are metal oxide ceramic materials and intermediate materials thereof (e.g., nanozirconia gels, nanozirconia green bodies, pre-sintered ceramic bodies, zirconia dental ceramic materials, and dental articles). The nanozirconia gels are formable gels. Also provided are methods of making and using the metal oxide materials and intermediate materials. The nanozirconia gels can be made using, for example, osmotic processing. The nanozirconia gels can be used to make nanozirconia green bodies, pre-sintered ceramic bodies, zirconia dental ceramic materials, and dental article. The nanozirconia green bodies, pre-sintered ceramic bodies, zirconia dental ceramic materials, and dental articles have desirable properties (e.g., optical properties and mechanical properties).
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: November 21, 2017
    Assignee: Ivoclar Vivadent AG
    Inventors: Wei Xu, Yijun Wang, Dmitri Brodkin
  • Patent number: 9642685
    Abstract: A method and system for the fabrication of dental articles includes at least two imaging and measuring devices, which measure and provide images of the internal and external structure of intra-oral objects in a patient's oral cavity. The outputs from these devices are linked so that the descriptions of the intra-oral objects and features, oral cavity and surrounding bone structure are stored in a system of reference positions. The system of reference positions functions as a “global positioning device” registering locations and orientations of the measuring and imaging device or probe relative to the intra-oral objects and bone structure and orientations of the resulting individual frames or scans in the global system of coordinates. Three-dimensional images, scans and/or maps of the oral cavity obtained from each device are pieced together to generate solid three-dimensional models of the intra-oral objects.
    Type: Grant
    Filed: July 16, 2004
    Date of Patent: May 9, 2017
    Assignee: Pentron Clinical Technologies, LLC
    Inventor: Dmitri Brodkin
  • Patent number: 9585736
    Abstract: Method of forming dental articles by using relatively low sintering temperatures to achieve high density dental articles exhibiting strengths equal to and greater than about 700 MPa. Ceramic powders comprised of nanoparticulate crystallites are used to manufacture dental articles. The ceramic powders may include sintering agents, binders and other similar additives to aid in the processing of the ceramic powder into a dental article. The ceramic powders may be processed into dental articles using various methods including, but not limited to, injection molding, gel-casting, slip casting, or electroforming, hand, cad/camming and other various rapid prototyping methods. The ceramic powder may be formed into a suspension, pellet, feedstock material or a pre-sintered blank prior to forming into the dental article.
    Type: Grant
    Filed: April 22, 2014
    Date of Patent: March 7, 2017
    Assignee: Ivoclar Vivadent AG
    Inventors: Dmitri Brodkin, Moisey Y. Gamarnik
  • Publication number: 20160157971
    Abstract: The invention relates to multi-layer oxide ceramic bodies and in particular to presintered multi-layer oxide ceramic blanks and oxide ceramic green bodies suitable for dental applications. These bodies can be thermally densified by further sintering without distortion and are thus particularly suitable for the manufacture of dental restorations. The invention also relates to a process for the manufacture of such multi-layer oxide ceramic bodies as well as to a process for the manufacture of dental restorations using the multi-layer oxide ceramic bodies.
    Type: Application
    Filed: July 21, 2014
    Publication date: June 9, 2016
    Inventors: Frank ROTHBRUST, Christian RITZBERGER, Dmitri BRODKIN, Ajmal KHAN, Marcel SCHWEIGER
  • Publication number: 20160106526
    Abstract: Lithium silicate materials are described which can be easily processed by machining to dental products without undue wear of the tools.
    Type: Application
    Filed: December 30, 2015
    Publication date: April 21, 2016
    Inventors: Marcel Schweiger, Volker Rheinberger, Harald Bürke, Wolfram Höland, Elke Signer-Apel, Christian Ritzberger, Dmitri Brodkin
  • Patent number: 9248078
    Abstract: Lithium silicate materials are described which can be easily processed by machining to dental products without undue wear of the tools.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: February 2, 2016
    Assignee: Ivoclar Vivadent AG
    Inventors: Marcel Schweiger, Volker Rheinberger, Harald Burke, Wolfram Höland, Elke Apel, Christian Ritzberger, Dmitri Brodkin
  • Patent number: 9220576
    Abstract: Milling strategies for machining dental ceramic materials are provided that reduce milling time while maintaining strength, accuracy and marginal integrity.
    Type: Grant
    Filed: May 9, 2012
    Date of Patent: December 29, 2015
    Assignee: IVOCLAR VIVADENT AG
    Inventors: Markus Heinz, Klaus Rinner, Georg Gorfer, Marius Aster, Marcel Schweiger, Dmitri Brodkin
  • Publication number: 20150351880
    Abstract: Milling strategies for machining dental ceramic materials are provided that reduce milling time while maintaining strength, accuracy and marginal integrity.
    Type: Application
    Filed: August 14, 2015
    Publication date: December 10, 2015
    Inventors: Markus Heinz, Klaus Rinner, Georg Gorfer, Marius Aster, Marcel Schweiger, Dmitri Brodkin
  • Publication number: 20150079542
    Abstract: A process for the manufacture of a dental implant restoration system including an abutment for attaching a dental prosthesis within a patient's mouth. The abutment is a single unit structure fabricated of a ceramic material, multicolored throughout to match the color of the dental prosthesis, the surrounding dentition and the surrounding gingival tissue.
    Type: Application
    Filed: November 20, 2014
    Publication date: March 19, 2015
    Inventors: Jeffrey Smith, Robert Ganley, Dmitri Brodkin, Armin Ospelt, Tobias Specht, Hans Peter Foser
  • Patent number: 8936469
    Abstract: A process for the manufacture of a dental implant restoration system including an abutment for attaching a dental prosthesis within a patient's mouth. The abutment is a single unit structure fabricated of a ceramic material, multicolored throughout to match the color of the dental prosthesis, the surrounding dentition and the surrounding gingival tissue.
    Type: Grant
    Filed: January 8, 2013
    Date of Patent: January 20, 2015
    Assignee: Ivoclar Vivadent AG
    Inventors: Jeffrey Smith, Robert Ganley, Dmitri Brodkin, Armin Ospelt, Tobias Specht, Hans Peter Foser
  • Publication number: 20140300013
    Abstract: Method of forming dental articles by using relatively low sintering temperatures to achieve high density dental articles exhibiting strengths equal to and greater than about 700 MPa. Ceramic powders comprised of nanoparticulate crystallites are used to manufacture dental articles. The ceramic powders may include sintering agents, binders and other similar additives to aid in the processing of the ceramic powder into a dental article. The ceramic powders may be processed into dental articles using various methods including, but not limited to, injection molding, gel-casting, slip casting, or electroforming, hand, cad/camming and other various rapid prototyping methods. The ceramic powder may be formed into a suspension, pellet, feedstock material or a pre-sintered blank prior to forming into the dental article.
    Type: Application
    Filed: April 22, 2014
    Publication date: October 9, 2014
    Applicant: Ivoclar Vivadent AG
    Inventors: Dmitri Brodkin, Moisey Y. Gamarnik
  • Patent number: 8796166
    Abstract: The invention relates to compositions based on Ce-stabilized ZrO2, and single- and multi-colored blanks made from oxide ceramics, and a process for their preparation, in which oxide ceramic powder is coated with a coloring substance, the coated powders are preferably graded and at least one colored powder is filled into a compression mould, the colored powder or powders are compressed to produce a shaped body, and the compressed shaped body is sintered to produce a blank, and to the use of these blanks for the preparation of dental restorations. The compositions exhibit high fracture toughness and high flexural strength.
    Type: Grant
    Filed: April 4, 2012
    Date of Patent: August 5, 2014
    Assignee: Ivoclar Vivadent AG
    Inventors: Wolfram Höland, Christian Ritzberger, Elke Apel, Frank Rothbrust, Jérôme Chevalier, Dmitri Brodkin
  • Patent number: D722169
    Type: Grant
    Filed: June 18, 2010
    Date of Patent: February 3, 2015
    Assignee: Ivoclar Vivadent AG
    Inventors: Robert A. Ganley, Dmitri Brodkin