Patents by Inventor Alexandra R. Cunliffe
Alexandra R. Cunliffe 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).
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Publication number: 20240008955Abstract: Machine learning, or geometric deep learning, applied to various dental processes and 5 solutions. In particular, generative adversarial networks apply machine learning to smile design—finished smile, appliance rendering, scan cleanup, restoration appliance design, crown and bridges design, and virtual debonding. Vertex and edge classification apply machine learning to gum versus teeth detection, teeth type segmentation, and brackets and other orthodontic hardware. Regression applies machine learning to coordinate systems, diagnostics, case complexity, and 0 prediction of treatment duration. Automatic encoders and clustering apply machine learning to grouping of doctors, or technicians, and preferences.Type: ApplicationFiled: December 2, 2021Publication date: January 11, 2024Inventors: Jonathan D. Gandrud, Alexandra R. Cunliffe, James D. Hansen, Cameron M. Fabbri, Wenbo Dong, En-Tzu Yang, Jianbing Huang, Himanshu Nayar, Guruprasad Somasundaram, Jineng Ren, Joseph C. Dingeldein, Seyed Amir Hossein Hosseini, Steven C. Demlow, Benjamin D. Zimmer
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Publication number: 20230343040Abstract: Augmented reality-based training systems are described that dynamically construct and render AR content based on physical attributes of a user to train the user to correctly fit one or more articles of a personal protective equipment (PPE) onto the user's body. In some examples, an AR system includes a display and a computing device having a memory and one or more processors. The memory includes instructions that when executed by the processors simulate a fitting of a PPE to a worker by capturing at least a first image of the worker; selecting a digital model of the PPE; determining an alignment of the digital model of the PPE to the first image of the worker; and outputting for display augmented reality content comprising a composite of a least a second image of the worker overlaid with the digital model of the PPE in accordance with the determined alignment.Type: ApplicationFiled: May 5, 2021Publication date: October 26, 2023Inventors: Claire R. Donoghue, Christopher P. Henderson, Benjamin W. Watson, Caroline M. Ylitalo, Gautam Singh, Alexandra R. Cunliffe, Deepti Pachauri, Jonathan D. Gandrud
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Publication number: 20230306222Abstract: The present disclosure includes in one instance an optical article comprising a data rich plurality of retroreflective elements that are configured in a spatially defined arrangement, where the plurality of retroreflective elements comprise retroreflective elements having at least two different retroreflective properties, and where data rich means information that is readily machine interpretable. The present disclosure also includes a system comprising the previously mentioned optical article, an optical system, and an inference engine for interpreting and classifying the plurality of retroreflective elements wherein the optical system feeds data to the inference engine.Type: ApplicationFiled: April 4, 2023Publication date: September 28, 2023Inventors: Michael A. McCoy, Glenn E. Casner, Anne C. Gold, Silvia Geciova-Borovova Guttmann, Charles A. Shaklee, Robert W. Shannon, Gautam Singh, Guruprasad Somasundaram, Andrew H. Tilstra, John A. Wheatley, Caroline M. Ylitalo, Arash Sangari, Alexandra R. Cunliffe, Jonathan D. Gandrud, Kui Chen-Ho, Travis L. Potts, Maja Giese, Andreas M. Geldmacher, Katja Hansen, Markus G.W. Lierse, Neeraj Sharma
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Publication number: 20230218371Abstract: Methods for generating multiple orthodontic treatment options for a digital 3D model of teeth in malocclusion. The method generates a plurality of different orthodontic treatment plans for the teeth and displays in a user interface the digital 3D model of teeth in malocclusion with a visual indication of each of the plurality of different orthodontic treatment plans. The visual indication of the treatment plans can be overlaid on the digital 3D model of teeth in malocclusion and possibly include aligners, brackets, or a combination of aligners and brackets. A doctor, technician, or other user can then select one of the treatment plans for a particular patient.Type: ApplicationFiled: May 11, 2021Publication date: July 13, 2023Inventors: Alexandra R. Cunliffe, Elisa J. Collins, Guruprasad Somasundaram, Nitsan Ben-Gal Nguyen, Benjamin D. Zimmer, Cody J. Olson
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Publication number: 20230190409Abstract: Methods for generating stages for a portion of orthodontic aligner treatment for a digital 3D model of teeth in malocclusion. The methods generate a subset of stages of setups among a complete set of stages of setups for aligner treatment of the teeth. The subset of stages can be selected from a complete set of stages, based upon a target intermediate setup, or sequentially generated from one stage to the next in the subset. Aligners for the subset of stages of setups can then be manufactured without having to make a complete set of aligners. A method to generate a setup for the aligner treatment compares the digital 3D model of teeth in malocclusion to a plurality of setups for historical cases of teeth in malocclusion that have undergone aligner treatment.Type: ApplicationFiled: May 10, 2021Publication date: June 22, 2023Inventors: Alexandra R. Cunliffe, Guruprasad Somasundaram, Elisa J. Collins, Nitsan Ben-Gal Nguyen, Benjamin D. Zimmer
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Patent number: 11651179Abstract: The present disclosure includes in one instance an optical article comprising a data rich plurality of retroreflective meats that are configured in a spatially defined arrangement, where the plurality of retroreflective elements comprise retroreflective elements having at least two different retroreflective properties, and where data rich means information that is readily machine interpretable. The present disclosure also includes a system comprising the previously mentioned optical article, an optical system, and an inference engine for interpreting and classifying the plurality of retroreflective elements wherein the optical system feeds data to the inference engine.Type: GrantFiled: September 27, 2017Date of Patent: May 16, 2023Assignee: 3M Innovative Properties CompanyInventors: Michael A. McCoy, Glenn E. Casner, Anne C. Gold, Silvia Geciova-Borovova Guttmann, Charles A. Shaklee, Robert W. Shannon, Gautam Singh, Guruprasad Somasundaram, Andrew H. Tilstra, John A. Wheatley, Caroline M. Ylitalo, Arash Sangari, Alexandra R. Cunliffe, Jonathan D. Gandrud, Kui Chen-Ho, Travis L. Potts, Maja Giese, Andreas M. Geldmacher, Katja Hansen, Markus G. W. Lierse, Neeraj Sharma
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Publication number: 20220257341Abstract: This disclosure describes a computer-implemented method and system for evaluating, modifying, and determining setups for orthodontic treatment using metrics computed during virtual articulation. The virtual articulation techniques of this disclosure may further be combined with techniques for determining dynamic collision metrics, determining a comfort measurement, determining treatment efficacy, and/or determining dental conditions, such as bruxism. The techniques of this disclosure further include user interface techniques that provide an orthodontist/dentist/technician with information regarding various treatment plans based on metrics gathered during virtual articulation.Type: ApplicationFiled: July 20, 2020Publication date: August 18, 2022Inventors: Guruprasad Somasundaram, Alexandra R. Cunliffe, Benjamin D. Zimmer, Brian J. Stankiewicz, Nitsan Ben-Gal Nguyen, Richard E. Raby, Alberto Alvarez
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Patent number: 11417072Abstract: A system and method of selecting personal protection equipment (PPE) for a worker. The system identifies sets of PPEs and simulates a fitting of the identified PPE sets to the worker. Fitting includes, for each of the identified PPE sets, selecting a three-dimensional computer model for each article of the PPE set, placing the computer model of each of the PPE articles of the PPE set being fitted on a computer model representing the worker, identifying collisions between the computer models as placed, and taking an action based on the identified collisions.Type: GrantFiled: May 15, 2019Date of Patent: August 16, 2022Assignee: 3M Innovative Properties CompanyInventors: Alexandra R. Cunliffe, Caroline M. Ylitalo, Guruprasad Somasundaram, Benjamin D. Zimmer, Jonathan D. Gandrud, Claire R. Donoghue
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Publication number: 20220249201Abstract: A method for evaluating intermediate and final setups for orthodontic treatment. The method includes receiving intermediate and final setups, where each setup is a digital representation of a state of teeth at a particular stage of orthodontic treatment. Scores are computed based upon metrics related to at least some of the states represented by the corresponding setups, and the scores provide an indication of a validity of the corresponding states. The metrics along with an indication of the corresponding scores are displayed in a dashboard in order to provide a visual evaluation of the validity of the setups.Type: ApplicationFiled: July 24, 2019Publication date: August 11, 2022Inventors: Vera Shuman, Alexandra R. Cunliffe, Guruprasad Somasundaram, Benjamin D. Zimmer, Nitsan Ben-Gal Nguyen
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Publication number: 20220218452Abstract: Techniques are described for automating the design and manufacture a dental restoration appliance for restoring the dental anatomy of a patient. For example, a system processes a digital three-dimensional (3D) model of a future (desired) dental anatomy of a patient, the future dental anatomy representing an intended shape of at least one tooth of the patient. The system includes a landmark identifier configured to automatically compute, based on the digital 3D model of the future dental anatomy of the patient, one or more landmarks of the future dental anatomy of the patient. The system also includes a custom feature generator configured to automatically generate, based on the one or more landmarks, one or more custom appliance features for a dental appliance for restoring the at least one tooth of the patient. The system further includes a memory device configured to store a digital model of the dental appliance.Type: ApplicationFiled: May 20, 2020Publication date: July 14, 2022Inventors: Jonathan D. Gandrud, James D. Hansen, Joseph C. Dingeldein, Alexandra R. Cunliffe, Jaime B. Willoughby, Christopher R. Kokaisel, John M. Pilgrim
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Publication number: 20220160469Abstract: A method for generating and reusing digital setups for an orthodontic treatment path. The method receives a digital 3D model of teeth, optionally performs interproximal reduction on the model, and generates an initial treatment path with stages including an initial, final, and intermediate setups. The method divides the initial treatment path into initial steps of feasible motion of the teeth resulting in a final treatment path with setups corresponding with the initial steps. For a treatment redesign, the method computes new steps of feasible motion for only a portion of the initial treatment path and based upon the initial steps, and generates the final treatment path with new setups corresponding with the new steps. The setups can be used to make orthodontic appliances, such as clear tray aligners.Type: ApplicationFiled: March 31, 2020Publication date: May 26, 2022Inventors: Alexandra R. Cunliffe, Guruprasad Somasundaram, Benjamin D. Zimmer, Nitsan Ben-Gal Nguyen, Vera Shuman, Nancy M. Amato, Shawna L. Thomas
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Publication number: 20220061959Abstract: Aspects of the present disclosure relate to methods, devices, and systems using speech recognition in a dental procedure. The method can include receiving, by a computing device, voice input data that specifies dental information for a patient. The method can also include analyzing, by the computing device, the voice input data to process the dental information. Based on the identified dental treatment information, the method can include generating, by the computing device, one or more custom dental prescriptions for the patient.Type: ApplicationFiled: December 23, 2019Publication date: March 3, 2022Inventors: Nitsan Ben-Gal Nguyen, Guruprasad Somasundaram, Alexandra R. Cunliffe, Vera Shuman, Elisa J. Collins
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Publication number: 20220054234Abstract: Methods for automatically removing collisions between digital mesh objects and moving digital mesh objects between spatial arrangements. The collisions are removed from a set of digital mesh objects using a perturbation method or a mesh deformation method. After removing the collisions, the digital mesh objects are output in a state without collisions between them. The digital mesh objects can be moved between initial and final states based upon motion constraints of the mesh objects and interpolated states of them between the initial and final states. Based upon the constraints and interpolated states, a number of states for movement of the set of digital mesh objects is determined either collectively for the set or individually for each mesh object. The states can be used as digital setups for dental or orthodontic treatment planning.Type: ApplicationFiled: December 24, 2019Publication date: February 24, 2022Inventors: Alexandra R. Cunliffe, Benjamin D. Zimmer, Guruprasad Somasundaram, Deepti Pachauri, Jonathan D. Gandrud, Arash Sangari, Shawna L. Thomas, Nancy M. Amato
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Publication number: 20210259808Abstract: An automated method for generating a final setup for orthodontic treatment. The method includes receiving a digital 3D model of teeth in an initial state. The method computes a scoring function based upon metrics related to the initial state to generate a corresponding score, perturbs the state of the teeth through translations and rotations of a tooth or set of teeth to generate a perturbed state of the teeth, and updates the state of the teeth based upon the score and the perturbed state of the teeth to generate one or more final setups representing a final state of the teeth after the orthodontic treatment.Type: ApplicationFiled: July 29, 2019Publication date: August 26, 2021Inventors: Nitsan Ben-Gal Nguyen, Benjamin D. Zimmer, Guruprasad Somasundaram, Alexandra R. Cunliffe, Brian J. Stankiewicz, Elisa J. Collins, David T. Maiden Mueller, Steven C. Demlow, Cody J. Olson, Muhammad J. Afridi, Nancy Amato, Shawna L. Thomas, Alexander Gutierrez, Arash Sangari, Jonathan D. Gandrud
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Publication number: 20210209865Abstract: A system and method of selecting personal protection equipment (PPE) for a worker. The system identifies sets of PPEs and simulates a fitting of the identified PPE sets to the worker. Fitting includes, for each of the identified PPE sets, selecting a three-dimensional computer model for each article of the PPE set, placing the computer model of each of the PPE articles of the PPE set being fitted on a computer model representing the worker, identifying collisions between the computer models as placed, and taking an action based on the identified collisions.Type: ApplicationFiled: May 15, 2019Publication date: July 8, 2021Inventors: Alexandra R. Cunliffe, Caroline M. Ylitalo, Guruprasad Somasundaram, Benjamin D. Zimmer, Jonathan D. Gandrud, Claire R. Donoghue
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Patent number: 10758171Abstract: Methods for tracking gum line changes by comparing digital 3D models of teeth and gingiva taken at different times. The digital 3D models are segmented to digitally identify the teeth from the gingiva, and the segmented digital 3D models are compared to detect gum line changes by determining differences between them relating to the gum line. Gum line changes can also be estimated by comparing one of the digital 3D models with a 3D model having a predicted original location of the gum line. Gum line change maps can be displayed to show the gum line changes determined through the tracking or estimating of changes. The digital 3D models can also be displayed with periodontal measurements placed upon them.Type: GrantFiled: May 7, 2019Date of Patent: September 1, 2020Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Alexandra R. Cunliffe, Guruprasad Somasundaram, Benjamin D. Zimmer, Steve Lastavich, Peter See, Kelly L. Stein
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Publication number: 20200229900Abstract: A method for generating digital setups for an orthodontic treatment path. The method includes receiving a digital 3D model of teeth, performing interproximal reduction (IPR) on the model and, after performing the IPR, generating an initial treatment path with stages including an initial setup, a final setup, and a plurality of intermediate setups. The method also includes computing IPR accessibility for each tooth at each stage of the initial treatment path, applying IPR throughout the initial treatment path based upon the computed IPR accessibility, and dividing the initial treatment path into steps of feasible motion of the teeth resulting in a final treatment path with setups corresponding with the steps. The setups can be used to make orthodontic appliances, such as clear tray aligners, for each stage of the treatment path.Type: ApplicationFiled: September 27, 2018Publication date: July 23, 2020Inventors: Alexandra R. Cunliffe, Benjamin D. Zimmer, Jonathan D. Gandrud, Guruprasad Somasundaram, Arash Sangari, Deepti Pachauri, Shawna L. Thomas, Nancy M. Amato
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Publication number: 20190391304Abstract: The present disclosure includes in one instance an optical article comprising a data rich plurality of retroreflective meats that are configured in a spatially defined arrangement, where the plurality of retroreflective elements comprise retroreflective elements having at least two different retroreflective properties, and where data rich means information that is readily machine interpretable. The present disclosure also includes a system comprising the previously mentioned optical article, an optical system, and an inference engine for interpreting and classifying the plurality of retroreflective elements wherein the optical system feeds data to the inference engine.Type: ApplicationFiled: September 27, 2017Publication date: December 26, 2019Inventors: Michael A. McCoy, Glenn E. Casner, Anne C. Gold, Silvia Geciova-Borovova Guttmann, Charles A. Shaklee, Robert W. Shannon, Gautam Singh, Guruprasad Somasundaram, Andrew H. Tilstra, John A. Wheatley, Caroline M. Ylitalo, Arash Sangari, Alexandra R. Cunliffe, Jonathan D. Gandrud, Kui Chen-Ho, Travis L. Potts, Maja Giese, Andreas M. Geldmacher, Katja Hansen, Markus G.W. Lierse, Neeraj Sharma
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Patent number: 10492892Abstract: A method for aligning digital 3D models of dental arch pairs, including a mandible and maxilla, to bring them into bite alignment. The method estimates representative planes for the mandible and maxilla 3D models and transforms the models such that the representative planes are each aligned with their respective coordinate systems and shown in a horizontal view. The method also transforms the models such that the mandible and maxilla are each aligned with a same coordinate system and shown in a front view. The digital 3D models are then brought into bite alignment such that the mandible is in occlusion with the maxilla or within a distance near to occlusion. The digital models of the bite-aligned arch pairs can also be transformed or rotated to be shown centered in a front view.Type: GrantFiled: May 17, 2017Date of Patent: December 3, 2019Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Guruprasad Somasundaram, Benjamin D. Zimmer, Alexandra R. Cunliffe, Mojtaba K. Elyaderani, Arash Sangari, Evan J. Ribnick
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Publication number: 20190254588Abstract: Methods for tracking gum line changes by comparing digital 3D models of teeth and gingiva taken at different times. The digital 3D models are segmented to digitally identify the teeth from the gingiva, and the segmented digital 3D models are compared to detect gum line changes by determining differences between them relating to the gum line. Gum line changes can also be estimated by comparing one of the digital 3D models with a 3D model having a predicted original location of the gum line. Gum line change maps can be displayed to show the gum line changes determined through the tracking or estimating of changes. The digital 3D models can also be displayed with periodontal measurements placed upon them.Type: ApplicationFiled: May 7, 2019Publication date: August 22, 2019Inventors: Alexandra R. Cunliffe, Guruprasad Somasundaram, Benjamin D. Zimmer, Steve Lastavich, Peter See, Kelly L. Stein