Patents by Inventor Chunhua Li

Chunhua Li 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).

  • Dental appliance with cavity for an unerupted or erupting tooth
    Patent number: 10537405
    Abstract: A method includes to receive, via a computing device, data representing a plurality of teeth, identify data indicating which of the plurality of teeth are unerupted or erupting, predict at least one characteristic of a tooth of the unerupted or erupting teeth after they have fully erupted using one or more tooth eruption prediction factors, generate new data representing the unerupted or erupting teeth in multiple states of eruption based upon the predicted at least one characteristic of the fully erupted teeth, and generate a series of incremental tooth arrangements with the new data to define a proposed orthodontic treatment based on the new data representing the unerupted or erupting teeth in multiple states of eruption.
    Type: Grant
    Filed: August 14, 2017
    Date of Patent: January 21, 2020
    Assignee: Align Technology, Inc.
    Inventors: Jeeyoung Choi, Chunhua Li, John Morton, Bastien Pesenti, Vadim Matov, Alexander Beliaev, Petr Ushanov, Roman A. Roschin
  • Dental appliance with repositioning jaw elements
    Patent number: 10537406
    Abstract: The present disclosure provides method, computing device readable medium, and devices for dental appliances with repositioning jaw elements. An example of a method can include identifying a misaligned jaw of a patient from a virtual image of the patient's jaw, providing a treatment plan for the patient including a virtual model of a dental appliance having a first shell and a second shell configured to reposition at least one tooth of the patient, and adjusting the position of the repositioning jaw elements on the first shell and the second shell to comply with a number of constraints. The virtual model of the dental appliance including repositioning jaw elements on the first shell and the second shell configured to move a position of the misaligned jaw of the patient.
    Type: Grant
    Filed: September 19, 2014
    Date of Patent: January 21, 2020
    Assignee: Align Technology, Inc.
    Inventors: Ken Wu, Eric E. Kuo, Mitra Derakhshan, Crystal Tjhia, Eric Yau, Allen R. Boronkay, Chunhua Li, Gleb Krivovyaz
  • MASCARA COMPOSITIONS COMPRISING A POLYMER HAVING CYCLIC AMIDE, CYCLIC AMINE AND ACRYLAMIDE FUNCTIONALITY
    Publication number: 20200000703
    Abstract: A mascara composition includes a vehicle comprising water; a primary film-forming polymer that is a non-ionic and water-soluble or water dispersible copolymer comprising a first cyclic amide monomer, a cyclic amine monomer, and an acrylamide monomer; at least one nonionic secondary film-forming polymer having a fraction of a second cyclic amide monomer that is at least about 70% by weight of the at least one secondary film-forming polymer; and from about 0.5% to about 8% by weight of a C2-C5 alcohol.
    Type: Application
    Filed: June 29, 2018
    Publication date: January 2, 2020
    Applicant: L'OREAL
    Inventors: Christopher PANG, Chunhua LI, Jody EBANKS, XianZhi ZHOU
  • TREATMENT PLAN SPECIFIC BITE ADJUSTMENT STRUCTURES
    Publication number: 20200000557
    Abstract: A series of appliances including a first shell and a second shell can be designed to incrementally implement a treatment plan. The first and second shells can have cavities designed to receive teeth of a jaw. A first number of bite adjustment structures can be formed of a same material as the first shell, extending therefrom and designed to interface with teeth of a second jaw. The first number of bite adjustment structures can have a first shape and location specific to a first stage of the treatment plan. A second number of bite adjustment structures can be formed of a same material as the second shell, extending therefrom and designed to interface with teeth of the second jaw. The second number of bite adjustment structures can have a second shape and location, different than the first shape and location, specific to a second stage of the treatment plan.
    Type: Application
    Filed: March 11, 2019
    Publication date: January 2, 2020
    Inventors: Rohit Tanugula, John Morton, Chunhua Li, Bastien Pesenti, Jihua Cheng, Jeeyoung CHOI
  • Dental materials using thermoset polymers
    Patent number: 10492888
    Abstract: Provided herein are crosslinked polymers useful in orthodontic appliances and light polymerizable liquid compositions and formulations useful for making crosslinked polymers. Also provided are methods of making an orthodontic appliance comprising a cross-linked polymer formed by a direct fabrication technique.
    Type: Grant
    Filed: July 5, 2016
    Date of Patent: December 3, 2019
    Assignee: Align Technology, Inc.
    Inventors: Yan Chen, Chunhua Li, Srinivas Kaza, Neil Brian Cramer, Mary Catherine Berard
  • POLYMERIZABLE MONOMERS AND METHOD OF POLYMERIZING THE SAME
    Publication number: 20190345276
    Abstract: Provided herein are photopolymerizable monomers, optionally for use as reactive diluents in a high temperature lithography-based photopolymerization process, a method of producing polymers using said photopolymerizable monomers, the polymers thus produced, and orthodontic appliances comprising the polymers.
    Type: Application
    Filed: May 3, 2019
    Publication date: November 14, 2019
    Inventors: Robert LISKA, Christian GORSCHE, Markus KURY, Yan CHEN, Chunhua LI, Srinivas KAZA
  • Intraoral appliances with sensing
    Patent number: 10470847
    Abstract: Detection of placement of dental aligners in patient mouth on teeth for indication of wearing compliance. Described herein are apparatuses and methods for detecting wearing, including compliance, and for reliably transferring data, by wired or wireless direct or indirect communication of electronic compliance information to a smartphone. Also described herein are dental appliances that can detect physiological parameters related to respiration and sleep. Also described herein are aligner cases that enable NFC communication with electronic compliance indicator (ECI) devices and Bluetooth communication with smartphones.
    Type: Grant
    Filed: June 16, 2017
    Date of Patent: November 12, 2019
    Assignee: Align Technology, Inc.
    Inventors: Yaser Shanjani, Bruce Cam, Jun Sato, John Y. Morton, Victor Chen, Chunhua Li, Allen R. Boronkay, Srinivas Kaza
  • CURABLE COMPOSITION FOR USE IN A HIGH TEMPERATURE LITHOGRAPHY-BASED PHOTOPOLYMERIZATION PROCESS AND METHOD OF PRODUCING CROSSLINKED POLYMERS THEREFROM
    Publication number: 20190338067
    Abstract: Provided herein are curable compositions for use in a high temperature lithography-based photopolymerization process, a method of producing crosslinked polymers using said curable compositions, crosslinked polymers thus produced, and orthodontic appliances comprising the crosslinked polymers.
    Type: Application
    Filed: May 3, 2019
    Publication date: November 7, 2019
    Inventors: Robert LISKA, Christian GORSCHE, György HARAKALY, Markus KURY, Jürgen STAMPFL, Peter DORFINGER, Yan CHEN, Chunhua LI, Srinivas KAZA
  • Method to visualize and manufacture aligner by modifying tooth position
    Patent number: 10463452
    Abstract: Orthodontic systems and related methods are disclosed for designing and providing improved or more effective tooth moving systems for eliciting a desired tooth movement and/or repositioning teeth into a desired arrangement. Methods and orthodontic systems include the generation of an overcorrection in the tooth-receiving cavities of an appliance worn in the dentition. The overcorrection may provide an improved and more accurately applied force or moment applied to a tooth. The overcorrected force or moment can move a tooth closer to a desired position than if not overcorrected as sufficient force can still applied to the tooth as it gets closer to the desired position. The overcorrected force or moment may also better target the root of the tooth where the biological response to tooth movement occurs. The overcorrection may be calculated in various ways as described herein.
    Type: Grant
    Filed: August 23, 2017
    Date of Patent: November 5, 2019
    Assignee: Align Technology, Inc.
    Inventors: Vadim Matov, Fuming Wu, Jihua Cheng, Jennifer Chen, Chunhua Li, Bastien Pesenti, Igor Kvasov
  • Arch adjustment appliance
    Patent number: 10449016
    Abstract: The present disclosure provides method, systems, and devices for adjusting an arch of teeth. An appliance includes a removable shell formed of a first material having a number of cavities formed therein, wherein the number of cavities are shaped to receive teeth of a patient, and an arch element extending from the removable shell in a lingual direction and across at least a portion of the arch width of the removable shell, wherein the arch element is designed to expand an arch of the teeth of the patient, wherein the arch element has a width specific to a stage of a treatment plan.
    Type: Grant
    Filed: September 10, 2015
    Date of Patent: October 22, 2019
    Assignee: Align Technology, Inc.
    Inventors: Ryan Kimura, John Morton, Richard Shaw, Chunhua Li
  • TREATMENT PLAN SPECIFIC BITE ADJUSTMENT STRUCTURES
    Publication number: 20190282337
    Abstract: A series of appliances including a first shell and a second shell can be designed to incrementally implement a treatment plan. The first and second shells can have cavities designed to receive teeth of a jaw. A first number of bite adjustment structures can be formed of a same material as the first shell, extending therefrom and designed to interface with teeth of a second jaw. The first number of bite adjustment structures can have a first shape and location specific to a first stage of the treatment plan. A second number of bite adjustment structures can be formed of a same material as the second shell, extending therefrom and designed to interface with teeth of the second jaw. The second number of bite adjustment structures can have a second shape and location, different than the first shape and location, specific to a second stage of the treatment plan.
    Type: Application
    Filed: May 29, 2019
    Publication date: September 19, 2019
    Inventors: Rohit Tanugula, John Morton, Chunhua Li, Bastien Pesenti, Jihua Cheng, Jeeyoung Choi
  • TREATMENT PLAN SPECIFIC BITE ADJUSTMENT STRUCTURES
    Publication number: 20190282338
    Abstract: A series of appliances including a first shell and a second shell can be designed to incrementally implement a treatment plan. The first and second shells can have cavities designed to receive teeth of a jaw. A first number of bite adjustment structures can be formed of a same material as the first shell, extending therefrom and designed to interface with teeth of a second jaw. The first number of bite adjustment structures can have a first shape and location specific to a first stage of the treatment plan. A second number of bite adjustment structures can be formed of a same material as the second shell, extending therefrom and designed to interface with teeth of the second jaw. The second number of bite adjustment structures can have a second shape and location, different than the first shape and location, specific to a second stage of the treatment plan.
    Type: Application
    Filed: May 29, 2019
    Publication date: September 19, 2019
    Inventors: Rohit Tanugula, John Morton, Chunhua Li, Bastien Pesenti, Jihua Cheng, Jeeyoung Choi
  • DENTAL MATERIALS USING THERMOSET POLYMERS
    Publication number: 20190282335
    Abstract: Provided herein are crosslinked polymers useful in orthodontic appliances and light polymerizable liquid compositions and formulations useful for making crosslinked polymers. Also provided are methods of making an orthodontic appliance comprising a cross-linked polymer formed by a direct fabrication technique.
    Type: Application
    Filed: June 5, 2019
    Publication date: September 19, 2019
    Inventors: Yan Chen, Chunhua Li, Srinivas Kaza, Neil Brian Cramer, Mary Catherine Berard
  • PRESSURE-SENSITIVE ADHESIVE NAIL COMPOSITIONS
    Publication number: 20190254949
    Abstract: The invention relates to anhydrous nail compositions comprising interpolymer complexing compounds and a polar solvent. It further relates to methods of using such compositions.
    Type: Application
    Filed: February 20, 2018
    Publication date: August 22, 2019
    Applicant: L'OREAL
    Inventors: Tsang-Min HUANG, Chunhua LI, Hy Si BUI, Siliu TAN
  • Preparation method for printing OLED display
    Patent number: 10388914
    Abstract: The invention discloses a preparation method for a printing OLED display, comprising the following steps: preparing a hole injection layer, a hole transfer layer or an electron blocking layer on an anodic substrate; forming a soluble fluorine-containing insulation layer with a printing method to encapsulate the whole substrate; performing inkjet printing on the soluble fluorine-containing insulation layer with a fluorine solvent to wash to expose all sub-pixel pits; performing inkjet printing with the solution drops of luminescent materials to form a RGB luminescent layer in the sub-pixel pits; preparing an electron injection layer, an electron transfer layer or a hole blocking layer; preparing a cathode with a printing method or an evaporating method, and finally performing encapsulation to complete the preparation of the single printing OLED display.
    Type: Grant
    Filed: June 19, 2018
    Date of Patent: August 20, 2019
    Inventors: Hua Zheng, Lei Yang, Wei Zhang, Lixian Fan, Geng Zhang, Shaoqiang Zhang, Minxia Liu, Chunhua Li
  • Orthodontic appliance performance monitor
    Patent number: 10383705
    Abstract: Apparatuses and methods for monitoring the performance of an orthodontic appliance for repositioning a patient's teeth. An orthodontic appliance may include a plurality of teeth receiving cavities shaped to reposition the patient's teeth from an initial arrangement towards a target arrangement, and one or more sensors configured to determine tooth movement (based on position and/or orientation) and/or forces applied to the teeth. The sensor may be distributed between attachments and aligners that mate with the attachments.
    Type: Grant
    Filed: June 16, 2017
    Date of Patent: August 20, 2019
    Assignee: Align Technology, Inc.
    Inventors: Yaser Shanjani, Bruce Cam, Allen R. Boronkay, Jun Sato, John Y. Morton, Chunhua Li, Srinivas Kaza
  • Method and device for erasing a writing path on an infrared electronic white board, and a system for writing on an infrared electronic white board
    Patent number: 10373359
    Abstract: The disclosure discloses a method for erasing a writing path on an infrared electronic white board, the method including: adding data points to a writing path to obtain a complete writing path in which the distance between any two adjacent data points is no more than an erasing distance corresponding to a selected erasing mode; determining an erasing area according to an input erasing path and the erasing mode; and erasing those data points on the complete writing path, which lie in the erasing area.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: August 6, 2019
    Assignees: Hisense Electric Co., Ltd., Hisense USA Corporation, Hisense International Co., Ltd.
    Inventors: Min Wang, Chunhua Li, Zhenbao Zhang
  • MULTILAYER DENTAL APPLIANCES AND RELATED METHODS AND SYSTEMS
    Publication number: 20190231484
    Abstract: A dental appliance for positioning a patient's teeth includes a removable orthodontic tooth positioning appliance having teeth receiving cavities shaped to directly receive at least some of the patient's teeth and apply a resilient positioning force to the patient's teeth. The appliance includes a hard polymer layer having a hard polymer layer elastic modulus disposed between a first soft polymer layer having a first soft polymer layer elastic modulus and a second soft polymer layer having a second soft polymer layer elastic modulus. The hard polymer layer elastic modulus is greater than each of the first soft polymer layer elastic modulus and the second soft polymer layer elastic modulus. At least one of the first soft polymer layer and the second soft polymer layer has a flexural modulus of greater than about 35,000 psi.
    Type: Application
    Filed: April 12, 2019
    Publication date: August 1, 2019
    Inventors: Chunhua LI, Yan CHEN, Heinz PUDLEINER, Klaus MEYER, Joerg NICKEL, Craig PEHLERT
  • RELEASE AGENT RECEPTACLE
    Publication number: 20190231483
    Abstract: The present disclosure includes method, system, apparatus, and indicator embodiments. One apparatus includes an appliance for placement over one or more teeth and a release agent receptacle including an outer portion provided on appliance surface, an inner portion provided within the outer portion, and one or more apertures formed in the outer portion.
    Type: Application
    Filed: December 17, 2018
    Publication date: August 1, 2019
    Inventors: Jennifer C. Chen, Li-Hung Su, Chunhua Li
  • Dye-free nail varnish compositions and methods thereof
    Patent number: 10362850
    Abstract: A dye-free nail varnish that is used alone or with a stamp to generate a colored coating under incident white light is presented. The nail varnish includes photonic particles and/or block copolymers that can self-assemble to provide a structurally colored coating. The stamp presents a pattern of repeating nanostructures that can be transferred by imprinting the stamp on a coating of a dye-free nail varnish, thereby providing a structurally colored nail varnish coating. Thus, the nail varnish and stamp, independently or together, provide structurally colored coatings without the use of dyes or pigments.
    Type: Grant
    Filed: January 10, 2017
    Date of Patent: July 30, 2019
    Assignee: L'Oréal
    Inventors: Aline Guimont, Marta Wolska-Brys, Chunhua Li, Rong Dong