Patents by Inventor Robert Nerli

Robert Nerli 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 syringe safety sheath apparatus
    Patent number: 4998880
    Abstract: The present invention comprises a sheath for protecting a dental syringe and for preventing residual cross-contamination between successive patients. Means are provided for preventing contaminants from being drawn back into the syringe after application has ceased.
    Type: Grant
    Filed: June 30, 1989
    Date of Patent: March 12, 1991
    Inventor: Robert Nerli
  • Dental syringe safety sheath apparatus
    Patent number: 4859182
    Abstract: The present invention comprises a sheath for protecting a dental syringe and for preventing residual cross-contamination between successive patients. Means are provided for preventing contaminants from being drawn back into the syringe after application has ceased.
    Type: Grant
    Filed: November 9, 1987
    Date of Patent: August 22, 1989
    Inventor: Robert Nerli