Patents by Inventor Carmo Joseph Pereira

Carmo Joseph Pereira 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).

  • Publication number: 20150152074
    Abstract: Furfural is produced by contacting a feedstock solution containing C5 sugar and/or C6 sugar with a solid acid catalyst using reactive distillation. Both high yield and high conversion are obtained, without production of insoluble char in the reaction vessel. Degradation of furfural is minimized by its low residence time in contact with the solid acid catalyst. Higher catalyst lifetime can be achieved because the catalyst is continually washed with the refluxing aqueous solution and not sitting in high-boiling byproducts like humins, which are known to be deleterious to catalyst lifetime.
    Type: Application
    Filed: February 11, 2015
    Publication date: June 4, 2015
    Inventors: DAVID RICHARD CORBIN, PAUL JOSEPH FAGAN, STUART B. FERGUSSON, KEITH W. HUTCHENSON, PRANIT S. METKAR, RONNIE OZER, CARMO JOSEPH PEREIRA, BHUMA RAJAGOPALAN, SOURAV KUMAR SENGUPTA, ERIC J. TILL
  • Patent number: 9012664
    Abstract: Furfural is produced by contacting a feedstock solution containing C5 sugar and/or C6 sugar with a solid acid catalyst using reactive distillation. Both high yield and high conversion are obtained, without production of insoluble char in the reaction vessel. Degradation of furfural is minimized by its low residence time in contact with the solid acid catalyst. Higher catalyst lifetime can be achieved because the catalyst is continually washed with the refluxing aqueous solution and not sitting in high-boiling byproducts like humins, which are known to be deleterious to catalyst lifetime.
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: April 21, 2015
    Assignee: E I du Pont de Nemours and Company
    Inventors: David Richard Corbin, Paul Joseph Fagan, Stuart B Fergusson, Keith W Hutchenson, Pranit S Metkar, Ronnie Ozer, Carmo Joseph Pereira, Bhuma Rajagopalan, Sourav Kumar Sengupta, Eric J. Till
  • Patent number: 7491003
    Abstract: This invention pertains to a method and apparatus for thermally developing a photosensitive element. The photosensitive element includes a composition layer capable of being partially liquefied upon heating. Heating the layer causes one or more organic compounds in the layer to form a vapor. Oxidation of the vapor forms carbon dioxide and water vapor and reduces the need to manage waste streams containing the organic compounds.
    Type: Grant
    Filed: April 24, 2006
    Date of Patent: February 17, 2009
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Mark A. Hackler, James J. Grant, III, Bernard F. Hoff, Carmo Joseph Pereira, Wilford Shamlin, Thomas A. Simpson
  • Patent number: 7070743
    Abstract: Elevated temperature, gas-phase, catalyzed processes for preparing HCN in which induction heating is used as a source of energy, and novel apparatus for carrying out said processes.
    Type: Grant
    Filed: March 14, 2002
    Date of Patent: July 4, 2006
    Assignee: Invista North America S.A R.L.
    Inventors: Benny E. Blackwell, Cynthia K. Fallon, Gregory S. Kirby, Mehrdad Mehdizadeh, Theodore Augur Koch, Carmo Joseph Pereira, Sourav Kumar Sengupta
  • Publication number: 20030175196
    Abstract: Elevated temperature, gas-phase, catalyzed processes for preparing HCN in which induction heating is used as a source of energy, and novel apparatus for carrying out said processes.
    Type: Application
    Filed: March 14, 2002
    Publication date: September 18, 2003
    Inventors: Benny E. Blackwell, Cynthia K. Fallon, Gregory S. Kirby, Mehrdad Mehdizadeh, Theodore Augur Koch, Carmo Joseph Pereira, Sourav K. Sengupta