Patents by Inventor Kai C. Chan

Kai C. Chan 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).

  • Dental retention pin and method
    Patent number: 4187611
    Abstract: A dental retention pin has a threaded longitudinally grooved lower shaft section, an intermediate sealing section for sealing the hole in which the pin is threaded, and an upper section embeddable in a surrounding body of restorative material. A pinhole is drilled in a tooth and the pin is inserted therein by rotation to cut threads in the dentin as fluids are vented through the groove. The sealing section then enters the pinhole to establish a sealing relationship therewith.
    Type: Grant
    Filed: October 7, 1977
    Date of Patent: February 12, 1980
    Assignee: University of Iowa Research Foundation
    Inventor: Kai C. Chan
  • Electronic insect killer
    Patent number: D270930
    Type: Grant
    Filed: December 7, 1981
    Date of Patent: October 11, 1983
    Inventors: Man H. Lee, Moon W. Lee, Ping N. Lin, Kai C. Chan
  • Grill for an electronic insect killer or trap
    Patent number: D275220
    Type: Grant
    Filed: February 17, 1982
    Date of Patent: August 21, 1984
    Inventors: Man H. Lee, Moon W. Lee, Ping N. Lin, Kai C. Chan