Patents by Inventor Eugenia Costa Hann

Eugenia Costa Hann 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).

  • Enzymatic Production Of Peracids Using Perhydrolytic Enzymes
    Publication number: 20090239948
    Abstract: A process is provided to produce a concentrated aqueous peracid solution in situ using at least one enzyme having perhydrolase activity in the presence of hydrogen peroxide (at a concentration of at least 500 mM) under neutral to acidic reaction conditions from suitable carboxylic acid esters (including glycerides) and/or amides substrates. The concentrated peracid solution produced is sufficient for use in a variety of disinfection and/or bleaching applications.
    Type: Application
    Filed: April 30, 2009
    Publication date: September 24, 2009
    Inventors: Robert DiCosimo, Mark S. Payne, Vincent Brian Croud, John E. Gavagan, Lorraine W. Wagner, Eugenia Costa Hann
  • Enzymatic production of peracids using perhydrolytic enzymes
    Patent number: 7550420
    Abstract: A process is provided to produce a concentrated aqueous peracid solution in situ using at least one enzyme having perhydrolase activity in the presence of hydrogen peroxide (at a concentration of at least 500 mM) under neutral to acidic reaction conditions from suitable carboxylic acid esters (including glycerides) and/or amides substrates. The concentrated peracid solution produced is sufficient for use in a variety of disinfection and/or bleaching applications.
    Type: Grant
    Filed: October 27, 2006
    Date of Patent: June 23, 2009
    Assignee: E. I. DuPont De Nemours and Company
    Inventors: Robert DiCosimo, Mark Scott Payne, Eugenia Costa Hann, Vincent Brian Croud, John Edward Gavagan, Lorraine Winona Wagner