Patents by Inventor Clarence Ryan

Clarence Ryan 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).

  • Methods for increasing the amount of protein in potato tubers
    Publication number: 20050223441
    Abstract: In one aspect, the present invention provides potato tubers that each include water-soluble protein at a concentration of at least 5 mg/ml. Some potato tubers of the invention include an exogenous nucleic acid molecule that encodes a systemin molecule, or a prosystemin molecule, that is expressed in the potato tubers, whereby the synthesis of at least one water-soluble protein is induced by the expressed systemin molecule (or the systemin molecule derived from processed prosystemin). In another aspect, the present invention provides methods for increasing the amount of water-soluble protein in a potato tuber.
    Type: Application
    Filed: February 20, 2003
    Publication date: October 6, 2005
    Inventors: Clarence Ryan, Julian Narvaez, Gregory Pearce, Barry McGurl
  • Method for the elimination of Kunitz and Bowman-Birk trypsin inhibitors and carboxypeptidase inhibitor from potato proteins
    Patent number: 6686456
    Abstract: A method for removing protein impurities from extracts of protease inhibitor-containing plant material. Plant materials containing protease inhibitors, such a potato tubers that contain protease inhibitor II, are extracted using an alcohol-free solvent. The proteins present in the extract include impurities other than the protease inhibitor, specifically Kunitz, Bowman-Birk and carboxypeptidase inhibitors. The extract is subjected to heat treatment to denature and precipitate the unstable protein impurities followed by centrifugation to remove the precipitate. Ultrafiltration in the presence of a buffer removes the Bowman-Birk and carboxypeptidase inhibitors. The resulting purified protease inhibitor has applicability in the control of obesity and diabetes.
    Type: Grant
    Filed: July 6, 2001
    Date of Patent: February 3, 2004
    Assignee: Kemin Foods, L.C.
    Inventors: Rod Ausich, Fayad Z. Sheabar, Robert Stomp, Clarence Ryan, Brent Davidson
  • Method for the elimination of kunitz and bowman-birk trypsin inhibitors and carboxypeptidase inhibitor from potato proteins
    Publication number: 20030092151
    Abstract: A method for removing protein impurities from extracts of protease inhibitor-containing plant material. Plant materials containing protease inhibitors, such a potato tubers that contain protease inhibitor II, are extracted using an alcohol-free solvent. The proteins present in the extract include impurities other than the protease inhibitor, specifically Kunitz, Bowman-Birk and carboxypeptidase inhibitors. The extract is subjected to heat treatment to denature and precipitate the unstable protein impurities followed by centrifugation to remove the precipitate. Ultrafiltration in the presence of a buffer removes the Bowman-Birk and carboxypeptidase inhibitors. The resulting purified protease inhibitor has applicability in the control of obesity and diabetes.
    Type: Application
    Filed: July 6, 2001
    Publication date: May 15, 2003
    Inventors: Rod Ausich, Fayad Z. Sheabar, Robert Stomp, Clarence Ryan, Brent Davison