Patents Assigned to Manufacturers Hanover Trust Co.
  • Method of making an orthodontic bracket
    Patent number: 5095602
    Abstract: An orthodontic bracket and method of making same wherein the bracket has at least one tie wing integrally formed with a base portion. In one form of the invention the bracket is provided with at least one longitudinally extending groove which extends into the base portion, the groove having at least a portion extending beyond at least a portion of the groove opening. Another aspect of the present invention is directed to a method of making an orthodontic bracket using only ultrasonic machining techniques.
    Type: Grant
    Filed: November 28, 1990
    Date of Patent: March 17, 1992
    Assignee: Manufacturers Hanover Trust Co.
    Inventors: James F. Reher, Farrokh Farzin-Nia
  • Ultrasonic machining tool for machining orthodontic brackets
    Patent number: 4957550
    Abstract: An orthodontic bracket and method of making same wherein the bracket has at least one tiewing integrally formed with a base portion. In one form of the invention the bracket is provided with at least one longitudinally extending groove which extends into the base portion, the groove having at least a portion extending beyond at a least a portion of the groove opening. In another aspect of the present invention is directed to a method of making an orthodontic bracket using ultrasonic machining techniques.
    Type: Grant
    Filed: September 1, 1988
    Date of Patent: September 18, 1990
    Assignee: Manufacturers Hanover Trust Co.
    Inventors: James F. Reher, Farrokh Farzin-Nia
  • Bottle
    Patent number: D311681
    Type: Grant
    Filed: April 13, 1987
    Date of Patent: October 30, 1990
    Assignee: Manufacturers Hanover Trust Co.
    Inventor: Rajkumar S. Aggarwal