Patents Assigned to World Class Technology Corporation
  • Patent number: 12329604
    Abstract: The disclosure relates to an orthodontic bracket including a ligating member mountable to a bracket body, the ligating member moveable between an open and closed position over an archwire slot. The orthodontic bracket includes a channel formed between the bracket body and the ligating member, and a resilient biasing member extending into the channel, the biasing member interacting with the ligating member to retain the ligating member in either the open or closed position.
    Type: Grant
    Filed: April 24, 2023
    Date of Patent: June 17, 2025
    Assignee: World Class Technology Corporation
    Inventors: Alberto Ruiz-Vela, Juergen Bathen
  • Patent number: 11633263
    Abstract: The disclosure relates to an orthodontic bracket including a ligating member mountable to a bracket body, the ligating member moveable between an open and closed position over an archwire slot. The orthodontic bracket includes a channel formed between the bracket body and the ligating member, and a resilient biasing member extending into the channel, the biasing member interacting with the ligating member to retain the ligating member in either the open or closed position.
    Type: Grant
    Filed: April 30, 2020
    Date of Patent: April 25, 2023
    Assignee: World Class Technology Corporation
    Inventors: Alberto Ruiz-Vela, Juergen Bathen
  • Patent number: 11612457
    Abstract: An orthodontic bracket with an adjustable hook designed to facilitate bending. The orthodontic bracket includes a bracket body mountable to a tooth and an adjustable hook extending from the bracket body, the adjustable hook comprising a stem base structure a bend region extending from the stem base structure, a neck region extending from the bend region, and a head extending from the neck region. In some embodiments, the adjustable hook has a length, L1, measured from a bottom portion of the stem base structure to the head, and a length, L2, measured from a bottom portion of the neck region of the hook stem to a free end of the head, wherein L2 is greater than or equal to 60% of L1.
    Type: Grant
    Filed: March 21, 2018
    Date of Patent: March 28, 2023
    Assignee: World Class Technology Corporation
    Inventor: Alberto Ruiz-Vela
  • Patent number: 10357337
    Abstract: An orthodontic system having brackets with variably sized slots.
    Type: Grant
    Filed: May 22, 2017
    Date of Patent: July 23, 2019
    Assignee: World Class Technology Corporation
    Inventors: Thomas Pitts, Alberto Ruiz-Vela
  • Publication number: 20180185121
    Abstract: An orthodontic system having brackets with variably sized slots.
    Type: Application
    Filed: May 22, 2017
    Publication date: July 5, 2018
    Applicant: World Class Technology Corporation
    Inventors: Thomas Pitts, Alberto Ruiz-Vela
  • Patent number: 9566134
    Abstract: A set of orthodontic brackets is provided in combination with an archwire extending over an arc when fitted to the set of orthodontic brackets. The archwire has at least one radius of curvature over the length of its arc, and each one of said brackets in the set has an archwire slot. Each slot has at least one surface supporting the archwire which is contoured to have a radius of curvature that matches the radius of curvature along the arc of the archwire at that point. A round archwire is preferred and the archwire slots may be formed as tubular channels to provide better torque action for the archwire.
    Type: Grant
    Filed: April 10, 2013
    Date of Patent: February 14, 2017
    Assignee: World Class Technology Corporation
    Inventors: Rolf Hagelganz, Juergen Bathen
  • Patent number: 9517112
    Abstract: An orthodontic appliance comprises a base portion adapted to be affixed to a patient's tooth and an upper portion including a flexible and resilient hook for forming a tubular channel for receiving an archwire. The upper portion includes a flange affixed to the hook, and is sized and shaped to connect to loops of an elastomeric power chain.
    Type: Grant
    Filed: March 21, 2016
    Date of Patent: December 13, 2016
    Assignee: World Class Technology Corporation
    Inventors: Rolf Hagelganz, Juergen Bathen, Robert Kabbani
  • Publication number: 20160235502
    Abstract: An orthodontic appliance comprises a base portion adapted to be affixed to a patient's tooth and an upper portion including a flexible and resilient hook for forming a tubular channel for receiving an archwire. The upper portion includes a flange affixed to the hook, and is sized and shaped to connect to loops of an elastomeric power chain.
    Type: Application
    Filed: March 21, 2016
    Publication date: August 18, 2016
    Applicant: World Class Technology Corporation
    Inventors: Rolf Hagelganz, Juergen Bathen, Robert Kabbani
  • Patent number: 9089386
    Abstract: A self-ligating orthodontic bracket has a sliding archwire cover that has a top surface congruent with the top surface of an upper body portion having an archwire slot. The cover has a resilient locking tab that slides across the slot, bending upward as it encounters a ridge on the other side of the slot, and latching to the ridge to secure the cover in a closed position. The cover has a modified dovetail shape with flared bottom portions that slideably engage guides for reciprocal opening and closing sliding motion. A groove in the slide support track engages the locking tab in the open position preventing it from disengaging from the upper body portion.
    Type: Grant
    Filed: November 13, 2013
    Date of Patent: July 28, 2015
    Assignee: World Class Technology Corporation
    Inventors: Rolf Hagelganz, Juergen Bathen
  • Patent number: 8807995
    Abstract: The invention relates to a tooth top part for a tooth correction means (1), with a base body (2) at which a tooth support surface (5, 25, 45) is formed for being fixed at a tooth surface (3) by bonding, and which is provided with a guide recess (12, 32, 52) which is formed for receiving a connecting means (4, 24, 44) for coupling neighboring tooth top parts (2, 22, 42) and which passes through the base body (2) in spaced relationship to the tooth support surface (5) along a guiding axis (17). According to the invention, the base body (2) comprises a substantially triangular or circular section shaped cross section (11, 11a, 31, 51) in a cross sectional plane (10) normal to the guiding axis (17).
    Type: Grant
    Filed: August 7, 2012
    Date of Patent: August 19, 2014
    Assignee: World Class Technology Corporation
    Inventors: Robert Kabbani, Juergen Bathen, Rolf Hagelganz
  • Publication number: 20130252194
    Abstract: A set of orthodontic brackets is provided in combination with an archwire extending over an arc when fitted to the set of orthodontic brackets. The archwire has at least one radius of curvature over the length of its arc, and each one of said brackets in the set has an archwire slot. Each slot has at least one surface supporting the archwire which is contoured to have a radius of curvature that matches the radius of curvature along the arc of the archwire at that point. A round archwire is preferred and the archwire slots may be formed as tubular channels to provide better torque action for the archwire.
    Type: Application
    Filed: April 10, 2013
    Publication date: September 26, 2013
    Applicant: World Class Technology Corporation
    Inventors: Rolf Hagelganz, Juergen Bathen
  • Publication number: 20130230817
    Abstract: A tool for insertion and removal of an archwire into low-profile orthodontic brackets includes a handle section and at least one end section having a pair of claws separated by a gap. Each of the pair of claws has a pair of lobes with internal pathways for accommodating an archwire. This enables the archwire to be alternately pushed into and pulled away from an orthodontic bracket.
    Type: Application
    Filed: April 10, 2013
    Publication date: September 5, 2013
    Applicant: World Class Technology Corporation
    Inventor: Robert Kabbani
  • Patent number: 8465279
    Abstract: An orthodontic bracket mountable on a tooth for use in retraction mechanics to facilitate movement of teeth along an arch, which includes an archwire-receiving member rotatably mounted on a base and structured to freely rotate when tipping a tooth during sliding of the bracket along an archwire thereby minimizing friction between the archwire and bracket to significantly decrease the required retraction force, and treatment time, thereby minimizing the possibility of root resorption and maintaining the integrity of the root and surrounding bone. A locking pin for locking the member against rotation is employed when uprighting the tooth from a tipped position.
    Type: Grant
    Filed: January 3, 2012
    Date of Patent: June 18, 2013
    Assignee: World Class Technology Corporation
    Inventors: Juergen Bathen, Rolf Hagelganz
  • Patent number: 8366440
    Abstract: An orthodontic bracket mountable on a tooth for use in retraction mechanics to facilitate movement of teeth along an arch, which includes an archwire-receiving member rotatably mounted on a base and structured to freely rotate when tipping a tooth during sliding of the bracket along an archwire thereby minimizing friction between the archwire and bracket to significantly decrease the required retraction force, and treatment time, thereby minimizing the possibility of root resorption and maintaining the integrity of the root and surrounding bone. A locking mechanism for locking the member against rotation is employed when uprighting the tooth from a tipped position.
    Type: Grant
    Filed: May 3, 2012
    Date of Patent: February 5, 2013
    Assignee: World Class Technology Corporation
    Inventors: Juergen Bathen, Rolf Hagelganz
  • Patent number: 8287274
    Abstract: An orthodontic tool for an orthodontic appliance includes a handle and at least one distal end having a finger. The finger has a manipulator, which may include a pin or a plurality of pins, and a probe for engaging a rotary archwire cover. Using the tool, the orthodontist may open and close the archwire cover, which is rotationally mounted to an orthodontic bracket.
    Type: Grant
    Filed: May 25, 2010
    Date of Patent: October 16, 2012
    Assignee: World Class Technology Corporation
    Inventors: Juergen Bathen, Rolf Hagelganz
  • Patent number: 8235714
    Abstract: An orthodontic bracket having a base attachable to a tooth surface, with the base extending outward away from the tooth surface and forming an archwire slot sized to receive an archwire therewithin, and a removable archwire slot cover coined onto the base so as to cover the archwire slot and enable the bracket to function as a buccal tube when the cover is attached. The cover may be removed from the bracket base without removal of the bracket from the tooth surface so as to provide an open archwire slot for continued orthodontic treatment subsequent to removal of the removable archwire slot cover.
    Type: Grant
    Filed: August 12, 2009
    Date of Patent: August 7, 2012
    Assignee: World Class Technology Corporation
    Inventors: Rolf Hagelganz, Juergen Bathen, Klaus Hagelganz
  • Publication number: 20110039225
    Abstract: An orthodontic bracket having a base attachable to a tooth surface, with the base extending outward away from the tooth surface and forming an archwire slot sized to receive an archwire therewithin, and a removable archwire slot cover coined onto the base so as to cover the archwire slot and enable the bracket to function as a buccal tube when the cover is attached. The cover may be removed from the bracket base without removal of the bracket from the tooth surface so as to provide an open archwire slot for continued orthodontic treatment subsequent to removal of the removable archwire slot cover.
    Type: Application
    Filed: August 12, 2009
    Publication date: February 17, 2011
    Applicant: World Class Technology Corporation
    Inventors: Rolf Hagelganz, Juergen Bathen, Klaus Hagelganz
  • Patent number: 7878802
    Abstract: The present invention provides designs for a self-ligating orthodontic bracket. The self-ligating orthodontic bracket includes a mounting base for attachment to a tooth surface, an archwire slot, a rotary ligating cover permitting access to the archwire slot, and one or more locking features for holding the rotary ligating cover in a closed position. In one embodiment, the bracket includes one or more locking tabs on the rotary ligating cover aligned in coplanar relation to and cooperatively mating with cutout portions in the base. In one embodiment, the bracket includes at least one resilient retention mechanism which may include one or more relief channels permitting flexing of at least portions of the rotary ligating cover adjacent to the one or more locking tabs.
    Type: Grant
    Filed: February 23, 2009
    Date of Patent: February 1, 2011
    Assignee: World Class Technology Corporation
    Inventors: Klaus Hagelganz, Rolf Hagelganz, Juergen Bathen
  • Patent number: 7780443
    Abstract: The present invention provides designs for a self-ligating orthodontic bracket. According to one embodiment, the self-ligating orthodontic bracket includes a mounting base for attachment to a tooth surface, an archwire slot formed upon the base and sized for receiving an orthodontic archwire, a rotary ligating cover selectively rotatable between an open position permitting access to the archwire slot and a closed position covering the archwire slot, and one or more locking features for holding the rotary cover in a closed position. In one embodiment, the bracket includes one or more locking tabs on the rotary cover aligned in coplanar relation to the rotary cover and cooperatively mating with cutout portions in the base. The bracket may include cutouts on the sides of the rotary cover for easier manipulation of the cover. Lead in chamfers on the archwire slot may also be incorporated into the bracket base.
    Type: Grant
    Filed: April 20, 2007
    Date of Patent: August 24, 2010
    Assignee: World Class Technology Corporation
    Inventors: Rolf Hagelganz, James TenBrook
  • Patent number: 7585171
    Abstract: The present invention provides designs for a self-ligating orthodontic bracket. According to one embodiment, the self-ligating orthodontic bracket includes a mounting base for attachment to a tooth surface, an archwire slot formed upon the base and sized for receiving an orthodontic archwire, a rotary ligating cover selectively rotatable between an open position permitting access to the archwire slot and a closed position covering the archwire slot, and one or more locking features for holding the rotary ligating cover in a closed position. In one embodiment, the bracket includes one or more locking tabs on the rotary ligating cover aligned in coplanar relation to the rotary ligating cover and cooperatively mating with cutout portions in the base. In one embodiment, the bracket includes at least one resilient retention mechanism adjacent to the one or more locking tabs and aligned in coplanar relation to the rotary ligating cover.
    Type: Grant
    Filed: May 4, 2006
    Date of Patent: September 8, 2009
    Assignee: World Class Technology Corporation
    Inventors: Klaus Hagelganz, Rolf Hagelganz, Juergen Bathen