Patents by Inventor Carmen Cheang

Carmen Cheang 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).

  • Systems and methods for removing gingiva from computer tooth models
    Patent number: 7826646
    Abstract: A computer-implemented method separates gingiva from a model of a tooth by defining a cutting surface along the gingiva; and applying the cutting surface to the tooth to separate the gingiva from the tooth.
    Type: Grant
    Filed: July 31, 2003
    Date of Patent: November 2, 2010
    Assignee: Align Technology, Inc.
    Inventors: Elena Pavlovskaia, Venkata S. Sarva, Carmen Cheang
  • System and method for separating three-dimensional models
    Patent number: 7273367
    Abstract: A computer-implemented method separates first and second portions of a tooth by defining a cutting surface intersecting the first and second portions by specifying two points; and applying the cutting surface to the tooth to separate the tooth into two portions.
    Type: Grant
    Filed: November 10, 2003
    Date of Patent: September 25, 2007
    Assignee: Align Technology, Inc.
    Inventors: Joy Vannelia Hughes, Daniel Stuart Russel, Huazhang Luo, Carmen Cheang, Elena Pavloskaia, Venkata S. Sarva
  • Systems and methods for removing gingiva from computer tooth models
    Patent number: 7040896
    Abstract: A computer-implemented method separates gingiva from a model of a tooth by defining a cutting surface along the gingiva; and applying the cutting surface to the tooth to separate the gingiva from the tooth.
    Type: Grant
    Filed: February 28, 2002
    Date of Patent: May 9, 2006
    Assignee: Align Technology, Inc.
    Inventors: Elena Pavlovskaia, Venkata S. Sarva, Carmen Cheang
  • System and method for separating three-dimensional models
    Publication number: 20040096799
    Abstract: A computer-implemented method separates first and second portions of a tooth by defining a cutting surface intersecting the first and second portions by specifying two points; and applying the cutting surface to the tooth to separate the tooth into two portions.
    Type: Application
    Filed: November 10, 2003
    Publication date: May 20, 2004
    Applicant: Align Technology, Inc.
    Inventors: Joy Vannelia Hughes, Daniel Stuart Russel, Huazhang Luo, Carmen Cheang, Elena Pavloskaia, Venkata S. Sarva
  • System and method for separating three-dimensional models
    Patent number: 6688886
    Abstract: A computer-implemented method separates first and second portions of a tooth by defining a cutting surface intersecting the first and second portions by specifying two points; and applying the cutting surface to the tooth to separate the tooth into two portions.
    Type: Grant
    Filed: May 2, 2001
    Date of Patent: February 10, 2004
    Assignee: Align Technology, Inc.
    Inventors: Joy Vannelia Hughes, Daniel Stuart Russel, Huazhang Luo, Carmen Cheang, Elena Pavloskaia, Venkata Sarva
  • Systems and methods for removing gingiva from computer tooth models
    Publication number: 20040023188
    Abstract: A computer-implemented method separates gingiva from a model of a tooth by defining a cutting surface along the gingiva; and applying the cutting surface to the tooth to separate the gingiva from the tooth.
    Type: Application
    Filed: July 31, 2003
    Publication date: February 5, 2004
    Applicant: Align Technology, Inc.
    Inventors: Elena Pavlovskaia, Venkata S. Sarva, Carmen Cheang
  • Systems and methods for removing gingiva from computer tooth models
    Publication number: 20020177108
    Abstract: A computer-implemented method separates gingiva from a model of a tooth by defining a cutting surface along the gingiva; and applying the cutting surface to the tooth to separate the gingiva from the tooth.
    Type: Application
    Filed: February 28, 2002
    Publication date: November 28, 2002
    Applicant: Align Technology, Inc.
    Inventors: Elena Pavlovskaia, Venkata S. Sarva, Carmen Cheang
  • System and method for separating three-dimensional models
    Publication number: 20020055081
    Abstract: A computer-implemented method separates first and second portions of a tooth by defining a cutting surface intersecting the first and second portions by specifying two points; and applying the cutting surface to the tooth to separate the tooth into two portions.
    Type: Application
    Filed: May 2, 2001
    Publication date: May 9, 2002
    Inventors: Joy Vannelia Hughes, Daniel Stuart Russel, Huazhang Luo, Carmen Cheang, Elena Pavloskaia, Venkata Sarva
  • Flexible plane for separating teeth models
    Patent number: 6371761
    Abstract: A computer-implemented method separates first and second portions of a tooth by defining a cutting surface intersecting the first and second portions; and applying the cutting surface to the tooth to separate the tooth into two portions.
    Type: Grant
    Filed: March 30, 2000
    Date of Patent: April 16, 2002
    Assignee: Align Technology, Inc.
    Inventors: Carmen Cheang, Ventaka S. Sarva, Elena Pavloskaia