Patents by Inventor Gin C. Liaw

Gin C. Liaw 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: 6648978
    Abstract: An improved corn wet milling process is disclosed in which a first stream comprising water, starch, and protein (e.g., gluten) is generated by separating fiber from wet milled de-germed corn particles (e.g. fiber separation step). Membrane filtration (e.g. starch-protein stream thickening) is performed on the first stream, producing a first retentate and a first aqueous permeate. The first retentate (e.g. thickened starch-protein stream) is separated into a second stream and a third stream (e.g. primary starch separation step). The second stream comprises water and a majority of the starch present in the first retentate, and the third stream comprises water and a majority of the protein (e.g., gluten) present in the first retentate. This process provides an economical means of recovering a higher percentage of the available cornstarch for inclusion in high value products.
    Type: Grant
    Filed: October 15, 2001
    Date of Patent: November 18, 2003
    Assignee: A. E. Staley Manufacturing Co.
    Inventors: Gin C. Liaw, Munir Cheryan, Roy O. Elmore
  • Publication number: 20030070673
    Abstract: An improved corn wet milling process is disclosed in which a first stream comprising water, starch, and protein (e.g., gluten) is generated by separating fiber from wet milled de-germed corn particles (e.g. fiber separation step). Membrane filtration (e.g. starch-protein stream thickening) is performed on the first stream, producing a first retentate and a first aqueous permeate. The first retentate (e.g. thickened starch-protein stream) is separated into a second stream and a third stream (e.g. primary starch separation step). The second stream comprises water and a majority of the starch present in the first retentate, and the third stream comprises water and a majority of the protein (e.g., gluten) present in the first retentate. This process provides an economical means of recovering a higher percentage of the available cornstarch for inclusion in high value products.
    Type: Application
    Filed: October 15, 2001
    Publication date: April 17, 2003
    Applicant: A. E. Staley Manufacturing Co.
    Inventors: Gin C. Liaw, Munir Cheryan, Roy O. Elmore
  • Publication number: 20020164723
    Abstract: The present invention relates to a method for the production of saccharide preparations, i.e., syrups, by saccharifying a liquefied starch solution, which method comprises a saccharification step during which step one or more enzymatic saccharification stages takes place, and the subsequent steps of one or more high temperature membrane separation steps, and re-circulation of the saccharification enzyme, in which method the membrane separation steps are carried out as an integral part of the saccharification step.
    Type: Application
    Filed: July 18, 2001
    Publication date: November 7, 2002
    Applicant: Novozymes A/S
    Inventors: Gin C. Liaw, Sven Pedersen, Hanne Vang Hendriksen, Allan Svendsen, Bjarne Ronfeldt Nielsen, Rudy Illum Nielsen
  • Patent number: 6303346
    Abstract: The present invention relates to a method for the production of saccharide preparations, i.e., syrups, by saccharifying a liquefied starch solution, which method comprises a saccharification step during which step one or more enzymatic saccharification stages takes place, and the subsequent steps of one or more high temperature membrane separation steps, and re-circulation of the saccharification enzyme, in which method the membrane separation steps are carried out as an integral part of the saccharification step. In another specific aspect, the invention provides a method of producing a saccharide preparation, which method comprises an enzymatic saccharification step, and the subsequent steps of one or more high temperature membrane separation steps and re-circulation of the saccharification enzyme.
    Type: Grant
    Filed: August 4, 2000
    Date of Patent: October 16, 2001
    Assignee: Novozymes A/S
    Inventors: Gin C. Liaw, Sven Pedersen, Hanne Vang Hendriksen, Allan Svendsen, Bjarne Rønfeldt Nielsen, Ruby Illum Nielsen
  • Patent number: 6136571
    Abstract: The present invention relates to a method for the production of saccharide preparations, i.e., syrups, by saccharifying a liquefied starch solution, which method comprises a saccharification step during which step one or more enzymatic saccharification stages takes place, and the subsequent steps of one or more high temperature membrane separation steps, and re-circulation of the saccharification enzyme, in which method the membrane separation steps are carried out as an integral part of the saccharification step. In another specific aspect, the invention provides a method of producing a saccharide preparation, which method comprises an enzymatic saccharification step, and the subsequent steps of one or more high temperature membrane separation steps and re-circulation of the saccharification enzyme.
    Type: Grant
    Filed: February 10, 2000
    Date of Patent: October 24, 2000
    Assignee: Novo Nordisk A/S
    Inventors: Gin C. Liaw, Sven Pedersen, Hanne Vang Hendriksen, Allan Svendsen, Bjarne R.o slashed.nfeldt Nielsen, Ruby Illum Nielsen
  • Patent number: 6129788
    Abstract: The present invention relates to a method for the production of saccharide preparations, i.e., syrups, by saccharifying a liquefied starch solution, which method comprises a saccharification step during which step one or more enzymatic saccharification stages takes place, and the subsequent steps of one or more high temperature membrane separation steps, and recirculation of the saccharification enzyme, in which method the membrane separation steps are carried out as an integral part of the saccharification step.
    Type: Grant
    Filed: November 23, 1998
    Date of Patent: October 10, 2000
    Assignee: Novo Nordisk A/S
    Inventors: Gin C. Liaw, Sven Pedersen, Hanne Vang Hendriksen, Allan Svendsen, Bjarne R.o slashed.nfeldt Nielsen, Ruby Illum Nielsen
  • Patent number: 5968585
    Abstract: An improved corn wet milling process is disclosed. In a process in which corn kernels are steeped in an aqueous solution and are milled to facilitate the separation of the components thereof, in which starch from the corn is separated from gluten, and in which at least one aqueous gluten-containing stream is generated, the improvement comprises membrane filtration of an aqueous gluten-containing stream, producing a gluten-enriched retentate, and removing water from the gluten-enriched retentate, thereby producing a substantially dry gluten product. This improved process provides an economical means of recovering a higher percentage of the available protein for inclusion in high value products.
    Type: Grant
    Filed: February 11, 1997
    Date of Patent: October 19, 1999
    Assignee: A.E. Staley Manufacturing Company
    Inventors: Gin C. Liaw, Munir Cheryan
  • Patent number: 5773076
    Abstract: An improved corn wet milling process is disclosed, in which gluten is recovered from steepwater by membrane filtration and is incorporated in a corn gluten meal product. The process can include the steps of steeping corn kernels in an aqueous solution, thereby producing steep water which contains gluten protein; membrane filtration of the steep water, thereby producing a retentate which has a higher concentration of the gluten protein than the original steep water; reducing the water content of the retentate; and incorporating the remaining retentate into a corn gluten meal product.
    Type: Grant
    Filed: February 1, 1996
    Date of Patent: June 30, 1998
    Assignee: A.E. Staley Manufacturing Company
    Inventors: Gin C. Liaw, Eric H. Lutz, Munir Cheryan
  • Patent number: 5047088
    Abstract: A method for producing anhydrous crystalline fructose by crystallizing from solution is provided. A highly supersaturated aqueous solution of fructose is added to a heel of crystalline fructose and dry seed. The temperature of the solution is then lowered to crystallize fructose from the solution to form a massecuite. The massecuite is divided into a product portion and a heel portion, the product portion being treated to isolated crystalline fructose which is then classified into product cuts on the basis of particle size of the fructose crystals, each product cut having a substantially typical particle size distribution.
    Type: Grant
    Filed: June 30, 1989
    Date of Patent: September 10, 1991
    Assignee: A. E. Staley Manufacturing Company
    Inventors: Gin C. Liaw, James M. Gaddy, Frank M. Mallee, Steven J. Reust
  • Patent number: 4366060
    Abstract: Large-scale apparatus and process for chromatographic separation of fructose/dextrose sugar solutions employing large diameter beds of a strongly cationic salt of an ion exchange resin. The cationic ion exchange resin is densely and uniformly packed in a separation column by means of a resin loading method which includes washing the resin with a salt selected from the group of calcium, barium, strontium or silver salts of the resin. The shrunken resin is then placed in the column to completely fill the column. After sealing the column, excess salt is washed away to thereby expand the resin inside the confined separation column chamber.The uniformly dense packing of the resin in the separation column chamber eliminates the need for mechanical baffles which were formerly required to insure regular and uniform flow throughout the entire cross sectional area of the separation columns.
    Type: Grant
    Filed: December 26, 1978
    Date of Patent: December 28, 1982
    Assignee: A. E. Staley Manufacturing Company
    Inventors: Roger S. Leiser, Gin C. Liaw