Patents by Inventor Paul Dorman

Paul Dorman 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 and surgical handpiece with disposable cartridge
    Patent number: 5921777
    Abstract: A dental and surgical handpiece with disposable cartridge of the present invention includes a reusable handpiece and a disposable cartridge. The disposable cartridge contains all the major moving parts that provide torque and RPM for high speed dental drilling. The disposable cartridge detachably couples with the head of the reusable handpiece. The handpiece can be heat sterilized after the disposable cartridge is removed. The performance of the handpiece is not reduced by the sterilization since the turbine and bearings are contained in the disposable cartridge.
    Type: Grant
    Filed: June 26, 1998
    Date of Patent: July 13, 1999
    Assignee: Healthpoint, Ltd.
    Inventor: Paul Dorman
  • Dental and surgical handpiece with disposable cartridge
    Patent number: 5772435
    Abstract: A dental and surgical handpiece with disposable cartridge of the present invention includes a reusable handpiece and a disposable cartridge. The disposable cartridge contains all the major moving parts that provide torque and RPM for high speed dental drilling. The disposable cartridge fits into a receptacle in the head of the reusable handpiece. The handpiece can be heat sterilized after the disposable cartridge is removed. The performance of the handpiece is not reduced by the sterilization since the turbine and bearings are contained in the disposable cartridge.
    Type: Grant
    Filed: December 5, 1995
    Date of Patent: June 30, 1998
    Assignee: Healthpoint, Ltd.
    Inventor: Paul Dorman