Patents by Inventor Grace M. M. Chu

Grace M. M. Chu 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).

  • Oral hygiene instrument for use with orthodontial appliances and method of cleaning same
    Patent number: 4597398
    Abstract: An instrument for promoting oral hygiene particularly with patients having orthodontial appliances. An elongate handle includes a short hollow post at the distal end thereof disposed generally transverse to the handle. Flossing material is threaded through and out the post. In operation, the post is disposed by means of the handle between the orthodontial band and adjacent the spacing between teeth which are desired to be cleaned. The floss protruding out the post is then forced between the spacing to effect flossing thereof.
    Type: Grant
    Filed: February 15, 1985
    Date of Patent: July 1, 1986
    Inventor: Grace M. M. Chu