Patents by Inventor Henry Kin-Hang Leung

Henry Kin-Hang Leung 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).

  • Patent number: 8124160
    Abstract: A process and apparatus for a method for reducing the amount of acrylamide in thermally processed foods. This invention permits the production of foods having significantly reduced levels of acrylamide. The method relies on the manipulation of various unit operations used in the production of food products, particularly the washing and cooking unit operations. For example, the washing unit operation can be modified to provide a contacting step at an increased time and temperature, and adding components such as calcium chloride and L-cysteine to an aqueous solution used for the contacting. The cooking unit operation can be modified by dividing it into at least a higher-temperature first heating step and a lower-temperature second heating step in order to avoid the high-temperature/low-moisture conditions most favorable for acrylamide formation.
    Type: Grant
    Filed: October 31, 2005
    Date of Patent: February 28, 2012
    Assignee: Frito-Lay North America, Inc.
    Inventors: David Lawrence Barry, Colin Jeffrey Burnham, Pravin Maganlal Desai, Ponnattu Kurian Joseph, Henry Kin-Hang Leung, John Richard Masson, V. N. Mohan Rao, Robert William Saunders, James William Stalder, Michael Grant Topor
  • Patent number: 8114463
    Abstract: A process and apparatus for a method for reducing the amount of acrylamide in thermally processed foods. This invention permits the production of foods having significantly reduced levels of acrylamide. The method relies on the manipulation of various unit operations used in the production of food products, particularly the washing and cooking unit operations. For example, the washing unit operation can be modified to provide a contacting step at an increased time and temperature, and adding components such as calcium chloride and L-cysteine to an aqueous solution used for the contacting. The cooking unit operation can be modified by dividing it into at least a higher-temperature first heating step and a lower-temperature second heating step in order to avoid the high-temperature/low-moisture conditions most favorable for acrylamide formation.
    Type: Grant
    Filed: October 31, 2005
    Date of Patent: February 14, 2012
    Assignee: Frito-Lay North America, Inc.
    Inventors: David Lawrence Barry, Colin Jeffrey Burnham, Pravin Maganlal Desai, Ponnattu Kurian Joseph, Henry Kin-Hang Leung, John Richard Masson, V. N. Mohan Rao, Robert William Saunders, James William Stalder, Michael Grant Topor
  • Patent number: 7767247
    Abstract: A process and apparatus for a method for reducing the amount of acrylamide in thermally processed foods. This invention permits the production of foods having significantly reduced levels of acrylamide. The method relies on the manipulation of various unit operations used in the production of food products, particularly the washing and cooking unit operations. For example, the washing unit operation can be modified to provide a contacting step at an increased time and temperature, and adding components such as calcium chloride and L-cysteine to an aqueous solution used for the contacting. The cooking unit operation can be modified by dividing it into at least a higher-temperature first heating step and a lower-temperature second heating step in order to avoid the high-temperature/low-moisture conditions most favorable for acrylamide formation.
    Type: Grant
    Filed: October 31, 2005
    Date of Patent: August 3, 2010
    Assignee: Frito-Lay North America, Inc.
    Inventors: David Lawrence Barry, Colin Jeffrey Burnham, Pravin Maganlal Desai, Ponnattu Kurian Joseph, Henry Kin-Hang Leung, John Richard Masson, V.N. Mohan Rao, Robert William Saunders, James William Stalder, Michael Grant Topor
  • Patent number: 7763304
    Abstract: A process and apparatus for a method for reducing the amount of acrylamide in thermally processed foods. This invention permits the production of foods having significantly reduced levels of acrylamide. The method relies on the manipulation of various unit operations used in the production of food products, particularly the washing and cooking unit operations. For example, the washing unit operation can be modified to provide a contacting step at an increased time and temperature, and adding components such as calcium chloride and L-cysteine to an aqueous solution used for the contacting. The cooking unit operation can be modified by dividing it into at least a higher-temperature first heating step and a lower-temperature second heating step in order to avoid the high-temperature/low-moisture conditions most favorable for acrylamide formation.
    Type: Grant
    Filed: October 31, 2005
    Date of Patent: July 27, 2010
    Assignee: Frito-Lay North America, Inc.
    Inventors: David Lawrence Barry, Colin Jeffrey Burnham, Pravin Maganlal Desai, Ponnattu Kurian Joseph, Henry Kin-Hang Leung, John Richard Masson, V. N. Mohan Rao, Robert William Saunders, James William Stalder, Michael Grant Topor
  • Patent number: 7763305
    Abstract: A process and apparatus for a method for reducing the amount of acrylamide in thermally processed foods. This invention permits the production of foods having significantly reduced levels of acrylamide. The method relies on the manipulation of various unit operations used in the production of food products, particularly the washing and cooking unit operations. For example, the washing unit operation can be modified to provide a contacting step at an increased time and temperature, and adding components such as calcium chloride and L-cysteine to an aqueous solution used for the contacting. The cooking unit operation can be modified by dividing it into at least a higher-temperature first heating step and a lower-temperature second heating step in order to avoid the high-temperature/low-moisture conditions most favorable for acrylamide formation.
    Type: Grant
    Filed: October 31, 2005
    Date of Patent: July 27, 2010
    Assignee: Frito-Lay North America, Inc.
    Inventors: David Lawrence Barry, Colin Jeffrey Burnham, Pravin Maganlal Desai, Ponnattu Kurian Joseph, Henry Kin-Hang Leung, John Richard Masson, V. N. Mohan Rao, Robert William Saunders, James William Stalder, Michael Grant Topor
  • Patent number: 7763306
    Abstract: A process and apparatus for a method for reducing the amount of acrylamide in thermally processed foods. This invention permits the production of foods having significantly reduced levels of acrylamide. The method relies on the manipulation of various unit operations used in the production of food products, particularly the washing and cooking unit operations. For example, the washing unit operation can be modified to provide a contacting step at an increased time and temperature, and adding components such as calcium chloride and L-cysteine to an aqueous solution used for the contacting. The cooking unit operation can be modified by dividing it into at least a higher-temperature first heating step and a lower-temperature second heating step in order to avoid the high-temperature/low-moisture conditions most favorable for acrylamide formation.
    Type: Grant
    Filed: October 31, 2005
    Date of Patent: July 27, 2010
    Assignee: Frito-Lay North America, Inc.
    Inventors: David Lawrence Barry, Colin Jeffrey Burnham, Pravin Maganlal Desai, Ponnattu Kurian Joseph, Henry Kin-Hang Leung, John Richard Masson, V. N. Mohan Rao, Robert William Saunders, James William Stalder, Michael Grant Topor
  • Publication number: 20080182003
    Abstract: The present invention discloses formulations for sheeted, baked fruit and vegetable chips that have a light, crispy texture similar to a potato chip. The ingredients are combined with water and oil to make a dough, which is then sheeted and cut into pieces. The pieces are baked to produce vegetable and fruit snack chips.
    Type: Application
    Filed: January 31, 2007
    Publication date: July 31, 2008
    Inventors: Rosemary Shine Baker, Brenda K. Cremer, Thomas George Crosby, Henry Kin-Hang Leung, Bridget Manis, Carla Mejia, Kelly Sam Miller, Nancy J. Moriarity, Jason Thomas Niermann, Timothy F. Root, Mark W. Sheppard, Jim Stalder, Beverly L. Waters, Jo Ellen Wayne
  • Publication number: 20080182004
    Abstract: The present invention discloses formulations for sheeted, baked fruit and vegetable chips that have a light, crispy texture similar to a potato chip. The ingredients are combined with water and oil to make a dough, which is then sheeted and cut into pieces. The pieces are baked to produce vegetable and fruit snack chips.
    Type: Application
    Filed: January 31, 2007
    Publication date: July 31, 2008
    Inventors: Rosemary Shine Baker, Thomas George Crosby, Henry Kin-Hang Leung, Bridget Manis, Carla Mejia, Kelly Sam Miller, Nancy J. Moriarity, Jason Thomas Niermann, Jim Stalder, Beverly L. Waters
  • Patent number: 7393550
    Abstract: A process and apparatus for a method for reducing the amount of acrylamide in thermally processed foods. This invention permits the production of foods having significantly reduced levels of acrylamide. The method relies on the manipulation of various unit operations used in the production of food products, particularly the washing and cooking unit operations. For example, the washing unit operation can be modified to provide a contacting step at an increased time and temperature, and adding components such as calcium chloride and L-cysteine to an aqueous solution used for the contacting. The cooking unit operation can be modified by dividing it into at least a higher-temperature first heating step and a lower-temperature second heating step in order to avoid the high-temperature/low-moisture conditions most favorable for acrylamide formation.
    Type: Grant
    Filed: February 21, 2003
    Date of Patent: July 1, 2008
    Assignee: Frito-Lay North America, Inv.
    Inventors: David Lawrence Barry, Colin Jeffrey Burnham, Pravin Maganlal Desai, Ponnattu Kurian Joseph, Henry Kin-Hang Leung, John Richard Masson, V. N. Mohan Rao, Robert William Saunders, James William Stalder, Michael Grant Topor
  • Patent number: 7267834
    Abstract: In fabricated, thermally processed snack foods, the addition of one of a select group of amino acids to the recipe for the food inhibits the formation of acrylamide during the thermal processing. The amino acid can come from the group of cysteine, lysine, glycine, histidine, alanine, methionine, glutamic acid, aspartic acid, proline, phenylalanine, valine, and arginine and can be a commercially available amino acid or in a free form in an ingredient added to the food. Amino acids can be added to fabricated foods at the admix stage or by exposing raw food stock to a solution containing a concentration of the amino acid additive.
    Type: Grant
    Filed: February 21, 2003
    Date of Patent: September 11, 2007
    Assignee: Frito-Lay North America, Inc.
    Inventors: Vincent Allen Elder, John Gregory Fulcher, Henry Kin-Hang Leung, Michael Grant Topor
  • Patent number: 7037540
    Abstract: A process and apparatus for a method for reducing the amount of acrylamide in thermally processed foods. This invention permits the production of foods having significantly reduced levels of acrylamide. The method relies on interfering with an acrylamide formation pathway that begins with the amino acid asparagine.
    Type: Grant
    Filed: September 19, 2002
    Date of Patent: May 2, 2006
    Assignee: Frito-Lay North America, Inc.
    Inventors: Vincent Allen Elder, John Gregory Fulcher, Henry Kin-Hang Leung
  • Publication number: 20040166210
    Abstract: A process and apparatus for a method for reducing the amount of acrylamide in thermally processed foods. This invention permits the production of foods having significantly reduced levels of acrylamide. The method relies on the manipulation of various unit operations used in the production of food products, particularly the washing and cooking unit operations. For example, the washing unit operation can be modified to provide a contacting step at an increased time and temperature, and adding components such as calcium chloride and L-cysteine to an aqueous solution used for the contacting. The cooking unit operation can be modified by dividing it into at least a higher-temperature first heating step and a lower-temperature second heating step in order to avoid the high-temperature/low-moisture conditions most favorable for acrylamide formation.
    Type: Application
    Filed: February 21, 2003
    Publication date: August 26, 2004
    Inventors: David Lawrence Barry, Colin Jeffrey Burnham, Pravin Maganlal Desai, Ponnattu Kurian Joseph, Henry Kin-Hang Leung, John Richard Masson, V.N. Mohan Rao, Robert William Saunders, James William Stalder, Michael Grant Topor
  • Publication number: 20040166227
    Abstract: In fabricated, thermally processed snack foods, the addition of one of a select group of amino acids to the recipe for the food inhibits the formation of acrylamide during the thermal processing. The amino acid can come from the group of cysteine, lysine, glycine, histidine, alanine, methionine, glutamic acid, aspartic acid, proline, phenylalanine, valine, and arginine and can be a commercially available amino acid or in a free form in an ingredient added to the food. Amino acids can be added to fabricated foods at the admix stage or by exposing raw food stock to a solution containing a concentration of the amino acid additive.
    Type: Application
    Filed: February 21, 2003
    Publication date: August 26, 2004
    Inventors: Vincent Allen Elder, John Gregory Fulcher, Henry Kin-Hang Leung, Michael Grant Tropor
  • Publication number: 20040058054
    Abstract: A process and apparatus for a method for reducing the amount of acrylamide in thermally processed foods. This invention permits the production of foods having significantly reduced levels of acrylamide. The method relies on interfering with an acrylamide formation pathway that begins with the amino acid asparagine.
    Type: Application
    Filed: September 19, 2002
    Publication date: March 25, 2004
    Inventors: Vincent Allen Elder, John Gregory Fulcher, Henry Kin-Hang Leung
  • Publication number: 20040058045
    Abstract: In fabricated, thermally processed foods, the addition of one of a select group of divalent or trivalent cations to the recipe for the food inhibits the formation of acrylamide during the thermal processing. The cation can come from the group including calcium, magnesium, copper, aluminum, copper, and iron salts.
    Type: Application
    Filed: February 21, 2003
    Publication date: March 25, 2004
    Inventors: Vincent Allen Elder, John Gregory Fulcher, Henry kin-Hang Leung, Michael Grant Topor