Patents by Inventor David Christopher Leeson

David Christopher Leeson 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: 20240090975
    Abstract: A method is provided for shaping a custom anterior dental restoration from a preform, wherein the preform comprises a preform body and a preform stem. A method is further disclosed for generating one or more nesting positions for the restoration design within the geometry of the preform body relative to the position of the preform stem. A method is further disclosed for generating machining instructions based on the selected nesting position to optimize machining for chair-side applications.
    Type: Application
    Filed: November 29, 2023
    Publication date: March 21, 2024
    Applicant: James R. Glidewell Dental Ceramics, Inc.
    Inventors: Marco Antonio Jokada, David Christopher Leeson, Vaheh Golestanian Nemagrdi, Prabhakar Thirugnanasambandam, Kenad Destanovic
  • Patent number: 11915403
    Abstract: Disclosed herein are example embodiments of methods and systems for identifying manufacturing defects of a manufactured dentition model. One of the methods for performing quality control comprises: determining whether the manufactured dentition model is a good or a defective product based on a statistical characteristic of a differences model. The differences model can be generated based on differences between a scanned 3D patient-dentition data and a scanned 3D manufactured-dentition data. The scanned 3D patient-dentition data can be generated using 3D data of a patient's dentition, and the scanned 3D manufactured-dentition data can be generated using 3D data of the manufactured dentition model. The manufactured dentition model can be a 3D printed model.
    Type: Grant
    Filed: May 13, 2022
    Date of Patent: February 27, 2024
    Assignee: James R. Glidewell Dental Ceramics, Inc.
    Inventors: Abhishek Babasaheb Ajri, Vaheh Golestanian Nemagrdi, Marco Antonio Jokada, David Christopher Leeson
  • Publication number: 20240028782
    Abstract: A computer-implemented method and system of virtual dental restoration design automation includes: receiving a 3D virtual dental model of at least a portion of a patient's dentition, the 3D virtual dental model comprising at least one virtual preparation tooth, the virtual preparation tooth comprising a digital representation of a physical preparation tooth prepared by a dentist; performing an automated virtual restoration design using the 3D virtual dental model; displaying virtually to the dentist one or more physical preparation tooth issues detected while performing the automated virtual restoration design; and displaying virtually to the dentist a generated virtual restoration for one or more adjustments where no physical preparation tooth issues are detected while performing the automated virtual restoration design.
    Type: Application
    Filed: July 18, 2023
    Publication date: January 25, 2024
    Applicant: James R. Glidewell Dental Ceramics, Inc.
    Inventors: Michael J. Selberis, Sergei Azernikov, David Christopher Leeson, Maksim Malkov
  • Patent number: 11850110
    Abstract: A method is provided for shaping a custom anterior dental restoration from a preform, wherein the preform comprises a preform body and a preform stem. A method is further disclosed for generating one or more nesting positions for the restoration design within the geometry of the preform body relative to the position of the preform stem. A method is further disclosed for generating machining instructions based on the selected nesting position to optimize machining for chair-side applications.
    Type: Grant
    Filed: January 30, 2023
    Date of Patent: December 26, 2023
    Assignee: James R. Glidewell Dental Ceramics, Inc.
    Inventors: Marco Antonio Jokada, David Christopher Leeson, Vaheh Golestanian Nemagrdi, Prabhakar Thirugnanasambandam, Kenad Destanovic
  • Publication number: 20230172690
    Abstract: A method is provided for shaping a custom anterior dental restoration from a preform, wherein the preform comprises a preform body and a preform stem. A method is further disclosed for generating one or more nesting positions for the restoration design within the geometry of the preform body relative to the position of the preform stem. A method is further disclosed for generating machining instructions based on the selected nesting position to optimize machining for chair-side applications.
    Type: Application
    Filed: January 30, 2023
    Publication date: June 8, 2023
    Applicant: James R. Glidewell Dental Ceramics, Inc.
    Inventors: Marco Antonio Jokada, David Christopher Leeson, Vaheh Golestanian Nemagrdi, Prabhakar Thirugnanasambandam, Kenad Destanovic
  • Patent number: 11564773
    Abstract: A method is provided for shaping a custom anterior dental restoration from a preform, wherein the preform comprises a preform body and a preform stem. A method is further disclosed for generating one or more nesting positions for the restoration design within the geometry of the preform body relative to the position of the preform stem. A method is further disclosed for generating machining instructions based on the selected nesting position to optimize machining for chair-side applications.
    Type: Grant
    Filed: October 30, 2020
    Date of Patent: January 31, 2023
    Assignee: James R. Glidewell Dental Ceramics, Inc.
    Inventors: Marco Antonio Jokada, David Christopher Leeson, Vaheh Golestanian Nemagrdi, Prabhakar Thirugnanasambandam, Kenad Destanovic
  • Patent number: 11559378
    Abstract: Systems and methods are provided for scanning a dental impression to obtain a digital model of a patient's dentition as an input to computer aided design (CAD) and computer aided manufacturing (CAM) methods for producing dental prostheses.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: January 24, 2023
    Assignee: James R. Glidewell Dental Ceramics, Inc.
    Inventors: Sergey Nikolskiy, David Christopher Leeson, Shih-Kai Lai, Loraine Allessandra Queji Silva
  • Publication number: 20220277436
    Abstract: Disclosed herein are example embodiments of methods and systems for identifying manufacturing defects of a manufactured dentition model. One of the methods for performing quality control comprises: determining whether the manufactured dentition model is a good or a defective product based on a statistical characteristic of a differences model. The differences model can be generated based on differences between a scanned 3D patient-dentition data and a scanned 3D manufactured-dentition data. The scanned 3D patient-dentition data can be generated using 3D data of a patient's dentition, and the scanned 3D manufactured-dentition data can be generated using 3D data of the manufactured dentition model. The manufactured dentition model can be a 3D printed model.
    Type: Application
    Filed: May 13, 2022
    Publication date: September 1, 2022
    Applicant: James R. Glidewell Dental Ceramics, Inc.
    Inventors: Abhishek Babasaheb Ajri, Vaheh Golestanian Nemagrdi, Marco Antonio Jokada, David Christopher Leeson
  • Publication number: 20220265401
    Abstract: A system is disclosed for processing a plurality of customized dental restorations from individual millable material blocks in an automated process. The system comprises processing units that may comprise one or more of a milling center comprising one or more milling units, a plurality of material blocks a separating unit, a scrap disposal unit, a heating unit and a cooling unit. A carrier for holding a plurality of individual workpieces in spaced arrangement is also disclosed for use in the system.
    Type: Application
    Filed: May 13, 2022
    Publication date: August 25, 2022
    Applicant: James R. Glidewell Dental Ceramics, Inc.
    Inventors: David Christopher Leeson, James Fidel Zamora, Dong Hee Phee, Nicolas Ziegler
  • Patent number: 11331172
    Abstract: A system is disclosed for processing a plurality of customized dental restorations from individual millable material blocks in an automated process. The system comprises processing units that may comprise one or more of a milling center comprising one or more milling units, a plurality of material blocks a separating unit, a scrap disposal unit, a heating unit and a cooling unit. A carrier for holding a plurality of individual workpieces in spaced arrangement is also disclosed for use in the system.
    Type: Grant
    Filed: October 7, 2019
    Date of Patent: May 17, 2022
    Assignee: James R. Glidewell Dental Ceramics, Inc.
    Inventors: David Christopher Leeson, James Fidel Zamora, Dong Hee Phee, Nicolas Ziegler
  • Patent number: 11334977
    Abstract: Disclosed herein are example embodiments of methods and systems for identifying manufacturing defects of a manufactured dentition model. One of the methods for performing quality control comprises: determining whether the manufactured dentition model is a good or a defective product based on a statistical characteristic of a differences model. The differences model can be generated based on differences between a scanned 3D patient-dentition data and a scanned 3D manufactured-dentition data. The scanned 3D patient-dentition data can be generated using 3D data of a patient's dentition, and the scanned 3D manufactured-dentition data can be generated using 3D data of the manufactured dentition model. The manufactured dentition model can be a 3D printed model.
    Type: Grant
    Filed: October 17, 2019
    Date of Patent: May 17, 2022
    Assignee: James R. Glidewell Dental Ceramics, Inc.
    Inventors: Abhishek Babasaheb Ajri, Vaheh Golestanian Nemagrdi, Marco Antonio Jokada, David Christopher Leeson
  • Publication number: 20220108453
    Abstract: Disclosed are example embodiments of methods and systems for identifying and quantifying manufacturing defects of a manufactured dental prosthesis. Certain embodiments of the system for performing quality control on manufactured dental prostheses includes: a quality control module configured to determine whether the dental prosthesis is a good or a defective product based at least on a differences model generated by comparing a design model and a scanned model of the manufactured dental prosthesis.
    Type: Application
    Filed: December 15, 2021
    Publication date: April 7, 2022
    Inventors: Abhishek Babasaheb Ajri, Vaheh Golestanian Nemagrdi, Marco Antonio Jokada, David Christopher Leeson
  • Patent number: 11210788
    Abstract: Disclosed are example embodiments of methods and systems for identifying and quantifying manufacturing defects of a manufactured dental prosthesis. Certain embodiments of the system for performing quality control on manufactured dental prostheses includes: a quality control module configured to determine whether the dental prosthesis is a good or a defective product based at least on a differences model generated by comparing a design model and a scanned model of the manufactured dental prosthesis.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: December 28, 2021
    Assignee: James R. Glidewell Dental Ceramics, Inc.
    Inventors: Abhishek Babasaheb Ajri, Vaheh Golestanian Nemagrdi, Marco Antonio Jokada, David Christopher Leeson
  • Patent number: 11120179
    Abstract: Disclosed are example embodiments of methods and systems for identifying and quantifying manufacturing defects of a manufactured dental prosthesis. Certain embodiments of the system for performing quality control on manufactured dental prostheses includes: an analysis module to best fit a scanned 3D data model of a manufactured dental prosthesis with a computer-aided design (CAD) model of the same manufactured dental prosthesis and to generate a differences model; and a quality controller to determine whether the manufactured dental prosthesis is a good or a defective product based on a statistical characteristic of the differences model.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: September 14, 2021
    Assignee: James R. Glidewell Dental Ceramics, Inc.
    Inventors: Abhishek Babasaheb Ajri, Vaheh Golestanian Nemagrdi, Marco Antonio Jokada, David Christopher Leeson
  • Publication number: 20210236238
    Abstract: Disclosed are example embodiments of methods and systems for improving teeth appearance and repositioning of the teeth. One of the systems is an appliance that includes: an outer shell with simulated teeth that approximate a final teeth arrangement; and inner cavities configured to receive a patient's teeth and to incrementally reposition the teeth toward the final teeth arrangement.
    Type: Application
    Filed: January 30, 2020
    Publication date: August 5, 2021
    Inventors: David Christopher Leeson, Michael J. Selberis, Sergey Nikolskiy
  • Patent number: 11045291
    Abstract: A machinable preform for shaping into dental restorations is described that comprises material having suitable strength for use in dental applications without requiring further processing after shaping to strengthen the material (such as sintering). In one embodiment, a preform is comprised of a machinable dental material having a Vickers hardness value in the range of 4HV GPa to 20HV GPa, and comprises a body and a stem that extends from the outer surface of the body that supports the body during shaping. A method for making the machinable preform, and a kit comprising a machinable preform and a grinding tool, are also described.
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: June 29, 2021
    Assignee: James R. Glidewell Dental Ceramics, Inc.
    Inventors: David Christopher Leeson, Marco A. Jokada, Vaheh Golestanian Nemagrdi, Hossein Madanipour
  • Publication number: 20210128272
    Abstract: A method is provided for shaping a custom anterior dental restoration from a preform, wherein the preform comprises a preform body and a preform stem. A method is further disclosed for generating one or more nesting positions for the restoration design within the geometry of the preform body relative to the position of the preform stem. A method is further disclosed for generating machining instructions based on the selected nesting position to optimize machining for chair-side applications.
    Type: Application
    Filed: October 30, 2020
    Publication date: May 6, 2021
    Inventors: Marco Antonio Jokada, David Christopher Leeson, Vaheh Golestanian Nemagrdi, Prabhakar Thirugnanasambandam, Kenad Destanovic
  • Publication number: 20200100879
    Abstract: A system is disclosed for processing a plurality of customized dental restorations from individual millable material blocks in an automated process. The system comprises processing units that may comprise one or more of a milling center comprising one or more milling units, a plurality of material blocks a separating unit, a scrap disposal unit, a heating unit and a cooling unit. A carrier for holding a plurality of individual workpieces in spaced arrangement is also disclosed for use in the system.
    Type: Application
    Filed: October 7, 2019
    Publication date: April 2, 2020
    Inventors: David Christopher Leeson, James Fidel Zamora, Dong Hee Phee, Nicolas Ziegler
  • Patent number: D939712
    Type: Grant
    Filed: November 1, 2019
    Date of Patent: December 28, 2021
    Assignee: James R. Glidewell Dental Ceramics, Inc.
    Inventors: Prabhakar Thirugnanasambandam, Kenad Destanovic, Marco Antonio Jokada, David Christopher Leeson, Vaheh Golestanian Nemagrdi
  • Patent number: D997363
    Type: Grant
    Filed: November 19, 2021
    Date of Patent: August 29, 2023
    Assignee: James R. Glidewell Dental Ceramics, Inc.
    Inventors: Marco Antonio Jokada, David Christopher Leeson