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).

  • Publication number: 20230200946
    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: Application
    Filed: February 17, 2023
    Publication date: June 29, 2023
    Inventors: Yaser SHANJANI, Bruce CAM, Allen R. BORONKAY, Jun SATO, John Y. MORTON, Chunhua LI, Srinivas KAZA
  • Publication number: 20230200942
    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: Application
    Filed: March 6, 2023
    Publication date: June 29, 2023
    Inventors: Jeeyoung CHOI, Chunhua LI, John MORTON, Bastien PESENTI, Vadim MATOV, Alexander BELIAEV, Petr USHANOV, Roman A. ROSCHIN
  • Publication number: 20230190416
    Abstract: The present disclosure provides methods, computing device readable medium, devices, and systems having a dental attachment placement structure. One dental attachment placement apparatus includes a body having an attachment placement surface that is to be placed on an attachment affixing surface of a tooth and wherein the attachment placement surface includes a portion that is shaped to allow placement of an attachment at a particular position on the affixing surface of the tooth and a portion of the body having a contour that is shaped to correspond with a contour of an alignment surface of a tooth and when the contour of the body and the corresponding contour is aligned, the attachment is located at the particular position and can be secured to the affixing surface of the tooth.
    Type: Application
    Filed: February 14, 2023
    Publication date: June 22, 2023
    Inventors: Peter WEBBER, Ryan KIMURA, Chunhua LI, Srinivas KAZA
  • Publication number: 20230197946
    Abstract: An electrochemical apparatus includes a positive electrode plate, the positive electrode plate includes a positive electrode active material layer, the positive electrode active material layer includes a positive electrode active material, the positive electrode active material includes a manganese-containing material, and a mass ratio Y of the manganese-containing material to the positive electrode active material ranges from 0.4 to 1. Through control of the mass ratio Y of the manganese-containing material to the positive electrode active material in the positive electrode active material layer, Mn dissolution out of the positive electrode active material layer can be effectively controlled.
    Type: Application
    Filed: December 22, 2022
    Publication date: June 22, 2023
    Applicant: Dongguan Poweramp Technology Limited
    Inventors: Chunhua LI, Huixin WANG
  • Publication number: 20230190414
    Abstract: Multilayer polymer sheets are provided, as well as related methods, systems, and appliances.
    Type: Application
    Filed: February 9, 2023
    Publication date: June 22, 2023
    Inventors: Chunhua LI, Yan CHEN, Heinz PUDLEINER, Klaus MEYER, Joerg NICKEL, Craig PEHLERT
  • Publication number: 20230191702
    Abstract: Systems, methods, and devices for post-processing additively manufactured objects are disclosed herein. In some embodiments, a method includes receiving a plurality of additively manufactured objects on a rotor, the plurality of additively manufactured objects having excess material thereon. The method can include removing the excess material from the plurality of additively manufactured objects by rotating the plurality of additively manufactured objects via the rotor. The method can further include applying energy to the plurality of additively manufactured objects to cure a portion of each additively manufactured object while the plurality of additively manufactured objects are on the rotor.
    Type: Application
    Filed: October 28, 2022
    Publication date: June 22, 2023
    Inventors: Viswanath Meenakshisundaram, Srinivas Kaza, Chunhua Li, Lance Robert Pickens, Shawn Stromenger, Jun Sato, Siobhan O'Leary, Peter Webber, Brett E. Kelly, Jennifer Chavez
  • Publication number: 20230181288
    Abstract: Multilayer polymer sheets are provided, as well as related methods, systems, and appliances.
    Type: Application
    Filed: February 9, 2023
    Publication date: June 15, 2023
    Inventors: Chunhua LI, Yan CHEN, Heinz PUDLEINER, Klaus MEYER, Joerg NICKEL, Craig PEHLERT
  • Patent number: 11666415
    Abstract: Methods and systems for producing orthodontic appliances are provided herein utilizing iterative modeling techniques to increase the efficiency and efficacy of said appliances. Further disclosed herein are the orthodontic appliances fabricated from such methods.
    Type: Grant
    Filed: December 31, 2019
    Date of Patent: June 6, 2023
    Assignee: Align Technology, Inc.
    Inventors: Yuxiang Wang, Andrew Jang, Bruce Cam, Rohit Tanugula, Chunhua Li, Jun Sato, Luyao Cai, Pavel Pokotilov, Kangning Su, John Y. Morton
  • Patent number: 11660167
    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, and 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. 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: November 14, 2017
    Date of Patent: May 30, 2023
    Assignee: ALIGN TECHNOLOGY, INC.
    Inventors: Ken Wu, Eric E. Kuo, Mitra Derakhshan, Crystal Tjhia, Eric Yau, Allen R. Boronkay, Chunhua Li
  • Publication number: 20230157790
    Abstract: Embodiments relate to an aligner breakage solution that tests damage to an aligner using machine learning. A method includes of training a machine learning model to predict damage to an orthodontic aligner includes gathering a training dataset comprising digital designs for a plurality of orthodontic aligners, wherein each digital design is associated with a respective orthodontic aligner of the plurality of orthodontic aligners, and wherein each digital design comprises metadata indicating whether the associated respective orthodontic aligner was damaged during manufacturing of the associated respective orthodontic aligner. The method further includes training the machine learning model using the training dataset, wherein the machine learning model is trained to process data from a digital design for an orthodontic aligner and to output a probability that the orthodontic aligner associated with the digital design will be damaged during manufacturing of the orthodontic aligner.
    Type: Application
    Filed: January 25, 2023
    Publication date: May 25, 2023
    Inventors: Viktoria Medvinskaya, Arno Kukk, Andrey Cherkas, Anna Akopova, Yuxiang Wang, Rohit Tanugula, Reza Shirazi Aghjari, Andrew Jang, Chunhua Li, Jun Sato, Luyao Cai
  • Patent number: 11648090
    Abstract: Multilayer polymer sheets are provided, as well as related methods, systems, and appliances.
    Type: Grant
    Filed: July 6, 2022
    Date of Patent: May 16, 2023
    Assignee: Align Technology, Inc.
    Inventors: Chunhua Li, Yan Chen, Heinz Pudleiner, Klaus Meyer, Joerg Nickel, Craig Pehlert
  • Patent number: 11648091
    Abstract: Multilayer polymer sheets are provided, as well as related methods, systems, and appliances.
    Type: Grant
    Filed: September 2, 2022
    Date of Patent: May 16, 2023
    Assignee: Align Technology, Inc.
    Inventors: Chunhua Li, Yan Chen, Heinz Pudleiner, Klaus Meyer, Joerg Nickel, Craig Pehlert
  • Publication number: 20230144519
    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: Application
    Filed: October 13, 2022
    Publication date: May 11, 2023
    Inventors: Vadim MATOV, Fuming WU, Jihua CHENG, Jennifer CHEN, Chunhua LI, Bastien PESENTI, Igor KVASOV
  • Publication number: 20230133005
    Abstract: Systems, methods, and devices for post-processing additively manufactured objects are disclosed herein. In some embodiments, a system includes a plurality of containers configured to receive a plurality of additively manufactured object having excess material thereon. The system can include a rotor having a central shaft and a plurality of arms, each arm having a first end and a second end opposite the first end. The first end of each arm can be coupled to the central shaft and a second end of each arm can be coupled to a respective container of the plurality of containers. The system can also include an actuator configured to spin the rotor so as to remove the excess material from the plurality of additively manufactured objects. The system can further include at least one heat source carried on the rotor to heat the excess material to decrease a viscosity thereof.
    Type: Application
    Filed: October 28, 2022
    Publication date: May 4, 2023
    Inventors: Viswanath Meenakshisundaram, Srinivas Kaza, Chunhua Li, Lance Robert Pickens, Shawn Stromenger, Jun Sato, Siobhan O'Leary, Peter Webber, Brett E. Kelly, Jennifer Chavez
  • Publication number: 20230134234
    Abstract: Systems, methods, and devices for post-processing additively manufactured objects are disclosed herein. In some embodiments, a method includes receiving a plurality of additively manufactured objects having excess material thereon. The method can include removing the excess material from the plurality of additively manufactured objects by rotating the plurality of additively manufactured objects. The method can also include adjusting an environmental temperature while rotating the plurality of additively manufactured objects according to a dynamic temperature profile that facilitates removal of the excess material from the plurality of additively manufactured objects. The dynamic temperature profile can include (a) a first temperature configured to decrease a viscosity of the excess material, and (b) a second temperature configured to increase a stiffness of the plurality of additively manufactured objects.
    Type: Application
    Filed: October 28, 2022
    Publication date: May 4, 2023
    Inventors: Viswanath Meenakshisundaram, Srinivas Kaza, Chunhua Li, Lance Robert Pickens, Shawn Stromenger, Jun Sato, Siobhan O'Leary, Peter Webber, Brett E. Kelly, Jennifer Chavez
  • Publication number: 20230137027
    Abstract: Systems, methods, and devices for post-processing additively manufactured objects are disclosed herein. In some embodiments, a method includes receiving a plurality of additively manufactured objects having excess material thereon. The method can include removing the excess material from the plurality of additively manufactured objects by rotating the plurality of additively manufactured objects. The method can also include receiving sensor data indicative of a cleaning status of the plurality of additively manufactured objects. The method can further include adjusting, based on the sensor data, an operational parameter that enhances removal of the excess material from the plurality of additively manufactured objects.
    Type: Application
    Filed: October 28, 2022
    Publication date: May 4, 2023
    Inventors: Viswanath Meenakshisundaram, Srinivas Kaza, Chunhua Li, Lance Robert Pickens, Shawn Stromenger, Jun Sato, Siobhan O'Leary, Peter Webber, Brett E. Kelly, Jennifer Chavez
  • Publication number: 20230131731
    Abstract: Disclosed is a method for using a two-step cosmetic product, such as used on the lips, that includes the use of a basecoat that utilizes a surface-stabilized dispersion of copolymer particles and a styrenic block copolymer, and a top coat that utilizes a silicone amine and a viscous silicone, and where the composition(s) are configured to allow the silicone amine to react with the maleic anhydride after the top coat is applied.
    Type: Application
    Filed: December 15, 2022
    Publication date: April 27, 2023
    Applicant: L'ORÉAL
    Inventors: Jody EBANKS, Chunhua LI, Tsang-Min HUANG, Julien PORTAL
  • Patent number: 11633261
    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: January 17, 2020
    Date of Patent: April 25, 2023
    Assignee: ALIGN TECHNOLOGY, INC.
    Inventors: Ken Wu, Eric E. Kuo, Mitra Derakhshan, Crystal Tjhia, Eric Yau, Allen R. Boronkay, Chunhua Li, Gleb Krivovyaz
  • Publication number: 20230095713
    Abstract: Appliances for orthodontic treatment are provided. In some embodiments, an orthodontic appliance includes a shell having a plurality of teeth-receiving cavities shaped to reposition a patient’s teeth from a first arrangement toward a second arrangement. The shell can have a first elasticity. The appliance can include an attachment-receiving well formed in the shell. The attachment-receiving well can be configured to engage an attachment coupled to a tooth of the patient. The appliance can further include at least one tactile object coupled to the attachment-receiving well. The at least one tactile object can include an elongate body that extends toward the attachment when the shell is worn on the patient’s teeth. The at least one tactile object can have a second elasticity greater than the first elasticity.
    Type: Application
    Filed: December 6, 2022
    Publication date: March 30, 2023
    Inventors: Chunhua Li, Jennifer Chen, John Morton, Jon Moss, Clark Kaufhardt, Heng Cao
  • Publication number: 20230097441
    Abstract: A method for lengthening lashes is provided, along with a kit for accomplishing the method. The method comprises (i) applying a glue onto an eyelash, (ii) allowing the glue to dry for a period of time; and then (iii) depositing a separate individual fiber onto a distal portion of the eyelash using a microbristle brush applicator having a bristle density above 4 bristles/mm2, where each fiber has a diameter greater than 30 microns and a length of 4 mm or less and each fiber is held electrostatically by the microbristle brush applicator. Mascara can then be applied to some or all of the lash and attached fiber.
    Type: Application
    Filed: September 29, 2021
    Publication date: March 30, 2023
    Applicant: L'ORÉAL
    Inventors: Yingchao CHEN, Kyoo Jin PARK, William BICKFORD, Chunhua LI, Aline Aude GUIMONT