Patents by Inventor Mitchell A. Hirsch

Mitchell A. Hirsch 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).

  • AN INDIRECT BONDING TRAY FOR BONDING ORTHODONTIC APPLIANCES AND METHODS OF MAKING AND USING THE SAME
    Publication number: 20230157792
    Abstract: Trays for indirect bonding orthodontic appliances to a patient's teeth and methods of bonding orthodontic appliances to patient's teeth, using a custom patient-specific mold body that optimizes the placement of the orthodontic appliances on the patient's teeth. Method of designing such trays for indirect bonding orthodontic appliances are also included.
    Type: Application
    Filed: April 16, 2021
    Publication date: May 25, 2023
    Inventors: Mitchell A. Hirsch, Daniel J. Skamser, David K. Cinader, Jr.
  • MULTI-LAYERED DENTAL APPLIANCE
    Publication number: 20220061961
    Abstract: A dental appliance for positioning a patients teeth includes a polymeric shell with a plurality of cavities for receiving one or more teeth. The polymeric shell includes at least 3 alternating polymeric layers AB, wherein layer A includes a thermoplastic polymer A, layer B includes a thermoplastic polymer B, and the thermoplastic polymer B is different from the thermoplastic polymer A. Each of the thermoplastic polymers A and B have a flexural modulus of about 1.0 GPa to about 4.0 GPa; and each of the thermoplastic polymers A and B have a glass transition temperature (Tg) greater than about 40° C.
    Type: Application
    Filed: December 30, 2019
    Publication date: March 3, 2022
    Inventors: Richard Y. Liu, Daniel J. Skamser, Bhaskar V. Velamakanni, Nathaniel I. Lehn, Mitchell A. Hirsch, Lyudmila A. Pekurovsky
  • DENTAL APPLIANCE WITH METAL OXIDE COATING
    Publication number: 20210251724
    Abstract: A dental appliance includes a polymeric shell with a first major surface having a plurality of cavities for receiving one or more teeth, and a layer of a metal oxide MOx on the first major surface.
    Type: Application
    Filed: June 10, 2019
    Publication date: August 19, 2021
    Inventors: Bhaskar V. Velamakanni, Ta-Hua Yu, Daniel J. Skamser, Narina Y. Stepanova, Mitchell A. Hirsch, Junkang J. Liu, Carola A. Carrera Vidal