Patents by Inventor Wafaa M. Mahmoud

Wafaa M. Mahmoud 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).

  • Removal of biofilm from surfaces
    Publication number: 20030121532
    Abstract: The disclosure encompasses composition, method and apparatus that provide improved and convenient removal of biofilm from surfaces. Surfaces cleaned according to the invention comprise the inner wall of conduits such as those employed in dental clinics, food and pharmaceutical manufacturing.
    Type: Application
    Filed: October 10, 2002
    Publication date: July 3, 2003
    Inventors: Robert W. Coughlin, Wafaa M. Mahmoud, Edward M. Davis, Heather L. Reddy
  • Enhanced bioconversion of toxic substances
    Patent number: 5173413
    Abstract: Method and apparatus are provided for the bioconversion of toxic substrates with increased yields of product. The invention makes use of immobilized cells as biocatalyst and complexing agent in either dissolved or solid form. The invention also employs various schemes and apparatus for separating immobilized cells and complexing agent for recycle and re-use in bioconversion reactions. A preferred embodiment of the invention produces improved yields and titers of L-phenylacetyl carbinol by the bioconversion of acetaldehyde using yeast cells.
    Type: Grant
    Filed: February 28, 1991
    Date of Patent: December 22, 1992
    Inventors: Robert W. Coughlin, Wafaa M. Mahmoud, A. Halim El-Sayed