Patents by Inventor Joyce C. Ho

Joyce C. Ho 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).

  • Patent number: 7686613
    Abstract: A ceramic orthodontic bracket has a centrally located clip for retaining an archwire in an archwire slot. The body of the bracket includes a mesial section, a distal section, and a bridge section, wherein the bridge section extends through, and retains, the clip. The bridge section also includes a recess adjacent to the bridge section that facilitates debonding of the bracket from a patient' s tooth. Preferably there are gaps on one or both sides of the clip to allow space for debonding of the bracket by applying a mesial-distal compressive force on the bracket and fracturing the bracket along the recess. This configuration allows the overall mesial-distal width of the bracket to be reduced, thereby facilitating the bonding of brackets to narrow and/or maloccluded teeth. Another embodiment includes a stop member that is connected to the base of the bracket and retains the clip on the bridge section.
    Type: Grant
    Filed: July 10, 2007
    Date of Patent: March 30, 2010
    Assignee: 3M Innovative Properties Company
    Inventors: Jirina V. Pospisil, Glenys A. Thorstenson, Joyce C. Ho, Joan V. Brennan
  • Patent number: 7670140
    Abstract: A hand instrument for detaching orthodontic brackets from a patient's teeth has first jaw, a second jaw and a blade that extends between the first jaw and the second jaw. The blade is received in a channel of a bracket during a debonding procedure, and serves to releasably clamp mesial and distal sections of the bracket to the hand instrument as the sections are detached from the tooth.
    Type: Grant
    Filed: December 20, 2006
    Date of Patent: March 2, 2010
    Assignee: 3M Innovative Properties Company
    Inventors: Joseph D. Hart, Joyce C. Ho, Glenys A. Thorstenson, William E. Wyllie, II, Philip P. Soo, John J. Palmer
  • Publication number: 20090017411
    Abstract: A ceramic orthodontic bracket has a centrally located clip for retaining an archwire in an archwire slot. The body of the bracket includes a mesial section, a distal section, and a bridge section, wherein the bridge section extends through, and retains, the clip. The bridge section also includes a recess adjacent to the bridge section that facilitates debonding of the bracket from a patient's tooth. Preferably there are gaps on one or both sides of the clip to allow space for debonding of the bracket by applying a mesial-distal compressive force on the bracket and fracturing the bracket along the recess. This configuration allows the overall mesial-distal width of the bracket to be reduced, thereby facilitating the bonding of brackets to narrow and/or maloccluded teeth. Another embodiment includes a stop member that is connected to the base of the bracket and retains the clip on the bridge section.
    Type: Application
    Filed: July 10, 2007
    Publication date: January 15, 2009
    Inventors: Jirina V. Pospisil, Glenys A. Thorstenson, Joyce C. Ho, Joan V. Brennan
  • Publication number: 20080153051
    Abstract: A hand instrument for detaching orthodontic brackets from a patient's teeth has first jaw, a second jaw and a blade that extends between the first jaw and the second jaw. The blade is received in a channel of a bracket during a debonding procedure, and serves to releasably clamp mesial and distal sections of the bracket to the hand instrument as the sections are detached from the tooth.
    Type: Application
    Filed: December 20, 2006
    Publication date: June 26, 2008
    Inventors: JOSEPH D. HART, Joyce C. Ho, Glenys A. Thorstenson, William E. Wyllie, Philip P. Soo, John J. Palmer
  • Patent number: 7217125
    Abstract: An orthodontic appliance includes a latch that comprises at least one clip with a region for receiving an archwire. The clip also includes a recess for receiving a post of the appliance and for coupling the clip to remaining components of the appliance. The clip includes at least one protrusion that extends between the post-receiving recess and the archwire-receiving region, and the protrusion serves to retain the clip in place on the post.
    Type: Grant
    Filed: December 23, 2005
    Date of Patent: May 15, 2007
    Assignee: 3M Innovative Properties Company
    Inventors: Ming-Lai Lai, Jirina V. Pospisil, Hoang V. Nguyen, Joyce C. Ho