Patents by Inventor Sara Iverson

Sara Iverson 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).

  • ISOLATION OF PELLET-FORMING MICROORGANISMS
    Publication number: 20130189722
    Abstract: The present disclosure provides technologies for identifying, characterizing and/or sorting pellet-forming microorganisms such as bacteria and/or fungi (e.g., yeast) in liquid culture, and particularly under fermentation conditions. In some embodiments, the pellet-forming microorganisms produce one or more commercial products. For example, in some embodiments the pellet-forming microorganisms produce one or more organic acids, carotenoid compounds, essential fatty acids, industrial enzymes, active pharmaceuticals, extracellular carbohydrates, and insecticidal compounds, etc. In many embodiments, the organisms are sorted while in their pellet form.
    Type: Application
    Filed: September 5, 2008
    Publication date: July 25, 2013
    Inventors: Joshua Trueheart, Jefferson Clay Lievense, Sara Iverson
  • Alkalitolerant xylanases
    Patent number: 6140095
    Abstract: The present invention discloses enzymes having xylanase considerable activity at a pH of 9.0 and a temperature of 70.degree. C. The enzymes are obtainable from deposited strains which are related to alkaliphilic Bacilli. The enzymes are suited for use in paper and pulp production processes.
    Type: Grant
    Filed: December 29, 1995
    Date of Patent: October 31, 2000
    Assignee: DSM N.V.
    Inventors: Diane P. Williams, Sara Iverson, Roberta Lee Farrell, Pieter Van Solingen, Wilhelmina Theresia Herbes, Wilhelmus Antonius H. Van Der Kleij, Rudolf Franciscus C. Van Beckhoven, Wilhelmus Johannes Quax, Margaretha Adriana Herwijer, Frits Goedegebuur, Brian Edward Jones
  • Thermostable xylanases
    Patent number: 6083733
    Abstract: The present invention discloses enzymes having xylanase activity. The xylanases are characterized in that they are active at a temperature of 80.degree. C. or higher. The enzymes are obtainable from anaerobic thermophilic bacteria. The enzymes are suited for use in paper and pulp production processes. The invention also describes cloning and expression of genes having xylanase activity obtained from the deposited strains.
    Type: Grant
    Filed: February 5, 1997
    Date of Patent: July 4, 2000
    Assignee: Gist-brocades B.V.
    Inventors: Vidar Gronberg, Simon Forster, Dean Moody, Diane P. Williams, Sara Iverson, Roberta Lee Farrell, Peter Leonard Bergquist, McIver Daniel, Hugh William Morgan, Wilhelmus Johannes Quax, Margareta Adriana Herweijer, Brian Edward Jones
  • Pitch degradation with wood colonizing bacteria
    Patent number: 5766926
    Abstract: The bacteria Pseudomonas fluorescens, Pantoea (Enterobacter) agglomerans, Bacillus cereus, and Xanthomonas campestris are useful in reducing the pitch content of pulps and pulpwoods used in making cellulosic products. Such bacteria are also useful in reducing the color staining by staining fungi of structural wood by inoculating the structural wood or log sources from which it is to be cut.
    Type: Grant
    Filed: May 8, 1996
    Date of Patent: June 16, 1998
    Assignee: Clariant Finance (BVI) Limited
    Inventors: Robert A. Blanchette, Todd A. Burnes, Roberta L. Farrell, Sara Iverson
  • Pitch and lignin degradation with white rot fungi
    Patent number: 5705383
    Abstract: The present invention relates to the use of certain fungi in the reduction of the pitch and/or lignin content of cellulosic materials. In particular, the white rot fungi Schizophyllum commune, Trichaptum biforme and Phanerochaete gigantea are useful in reducing pitch and/or lignin, or both, which saves electrical energy during the mechanical refining of pulps and pulpwoods used in making cellulosic products.
    Type: Grant
    Filed: September 29, 1995
    Date of Patent: January 6, 1998
    Assignee: Clariant Finance (BVI) Limited
    Inventors: Robert A. Blanchette, Sara Iverson, Chad J. Behrendt
  • Pitch degradation with white rot fungi
    Patent number: 5476790
    Abstract: The fungi Schizophyllum commune, Trichaptum biforme and Phanerochaete gigantea are useful in reducing the pitch content of pulps and pulpwoods used in making cellulosic products.
    Type: Grant
    Filed: November 3, 1994
    Date of Patent: December 19, 1995
    Assignee: Sandoz Ltd.
    Inventors: Robert A. Blanchette, Roberta L. Farrell, Sara Iverson
  • Pitch degradation with white rot fungus
    Patent number: 5472874
    Abstract: The fungus Phlebia tremellosa is useful in reducing the pitch content of pulps and pulpwoods used in making cellulosic products.
    Type: Grant
    Filed: May 20, 1994
    Date of Patent: December 5, 1995
    Assignee: Sandoz Ltd.
    Inventors: Robert A. Blanchette, Roberta L. Farrell, Sara Iverson