Patents by Inventor Sahar F. Smith

Sahar F. Smith 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).

  • Tooth bleaching
    Patent number: 6379653
    Abstract: The present invention provides safe products for bleaching teeth. Oral compositions comprising at least one oxidoreductase fulfil criteria without the presence of peroxide or with only very little peroxide present. The invention also relates to an oral care product comprising the oral composition of the invention, a method of bleaching teeth, a method for using said oral care products and the use of oxidoreductases for oxidation of teeth stains.
    Type: Grant
    Filed: August 27, 1999
    Date of Patent: April 30, 2002
    Assignee: Novozymes A/S
    Inventors: Dorrit Aaslyng, Rie Tsuchiya, Abdul Gaffar, Sahar F. Smith
  • Tooth bleaching
    Patent number: 5989526
    Abstract: The present invention provides safe products for bleaching teeth. Oral compositions comprising at least one oxidoreductase fulfil said criteria without the presence of peroxide or with only very little peroxide present. The invention also relates to an oral care product comprising the oral composition of the invention, a method of bleaching teeth, a method for using said oral care products and the use of oxidoreductases for oxidation of teeth stains.
    Type: Grant
    Filed: February 5, 1998
    Date of Patent: November 23, 1999
    Assignees: Novo Nordisk A/S, Colgate-Palmolive Company
    Inventors: Dorrit Aaslyng, Rie Tsuchiya, Abdul Gaffar, Sahar F. Smith
  • Anticalculus oral composition
    Patent number: 5094844
    Abstract: An oral composition such as a toothpaste (including gel or cream), mouthwash, lozenge, chewing gum or tooth powder containing a calculus-inhibiting amount of a linear molecularly dehydrated polyphosphate salt and, as inhibitor of enzymatic hydrolysis of said polyphosphate salt in saliva, a synthetic polymeric vinyl phosphate. A fluoride-ion providing source may also be present to further inhibit the enzymatic hydrolysis of said polyphosphate salt.
    Type: Grant
    Filed: December 20, 1990
    Date of Patent: March 10, 1992
    Assignee: Colgate-Palmolive Company
    Inventors: Abdul Gaffar, John Afflitto, Sahar F. Smith