Patents by Inventor Robert I. Christensen

Robert I. Christensen 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: 20230131928
    Abstract: Described is a process for releasing soluble starch hydrolysates or hydrolysed starch syrup from substantially intact corn kernels during high temperature steeping at a temperature at or above the gelatinization temperature of starch in the corn kernels, and the recovery of protein and oil-enhanced, carbohydrate-depleted residuals that are ideally suited for use as high quality animal feed or other food-grade products.
    Type: Application
    Filed: March 26, 2021
    Publication date: April 27, 2023
    Inventors: ROBERT I CHRISTENSEN, JAYARAMA K SHETTY
  • Patent number: 9938517
    Abstract: The invention provides small enzyme-containing granules having an inorganic salt core and an enzyme-containing layer coated over the core, and methods for producing such granules. The majority of the enzyme granules are less than 300 ?m in diameter. The granules are suitable for incorporation into compositions such as cleaning, textile processing, and animal feed compositions.
    Type: Grant
    Filed: April 18, 2017
    Date of Patent: April 10, 2018
    Assignee: Danisco US Inc.
    Inventors: Nathaniel T. Becker, Robert I. Christensen, Mark S. Gebert, Antti Pekka Vaha-Vahe
  • Publication number: 20170369537
    Abstract: The present invention relates in general to bacterial cells having a genetic alteration that results in increased expression of a protein of interest and methods of making and using such cells. Aspects of the present invention include Grampositive microorganisms, such as members of the Bacillus genus having a genetic alteration that delays, reduces, or blocks the expression or activation of genes for sporulation, thereby resulting in enhanced expression of a protein of interest. The genetic alteration is one that reduces expression of a kinA gene, a phrA gene or a phrE gene.
    Type: Application
    Filed: December 11, 2015
    Publication date: December 28, 2017
    Applicant: DANISCO US INC.
    Inventors: Cristina BONGIORNI, Robert I. CHRISTENSEN, Brian F. SCHMIDT, Anita VAN KIMMENADE
  • Publication number: 20170283785
    Abstract: The invention provides small enzyme-containing granules having an inorganic salt core and an enzyme-containing layer coated over the core, and methods for producing such granules. The majority of the enzyme granules are less than 300 ?m in diameter. The granules are suitable for incorporation into compositions such as cleaning, textile processing, and animal feed compositions.
    Type: Application
    Filed: April 18, 2017
    Publication date: October 5, 2017
    Applicant: DANISCO US INC.
    Inventors: Nathaniel T. BECKER, Robert I. CHRISTENSEN, Mark S. GEBERT, Antti Pekka VAHA-VAHE
  • Publication number: 20160264956
    Abstract: Methods are provided for recovery and formulation of insoluble enzymes from a microbial fermentation broth, without removal of microbial cells or cell debris. Granular and liquid formulations comprising insoluble enzymes are also provided.
    Type: Application
    Filed: March 21, 2016
    Publication date: September 15, 2016
    Applicant: Danisco US Inc.
    Inventors: Michael Bodo, Robert I. Christensen, Rajdeep S. Dhaliwal, Meng H. Heng
  • Patent number: 9375683
    Abstract: Filtration processes and systems are provided for the separation of a filterable fluid stream by a filtration membrane module with uniform transmembrane pressure and flux along the membrane and internal control of membrane fouling via intermittent periodic reduction of the pressure differential between the permeate and retentate sides of the membrane and/or backwashing cycles during separation, recovery, and/or purification of proteins, peptides, nucleic acids, biologically produced polymers and other compounds or materials from aqueous fluids.
    Type: Grant
    Filed: June 20, 2014
    Date of Patent: June 28, 2016
    Assignee: Danisco US Inc.
    Inventors: Nathaniel T. Becker, Ryszard Braun, Robert I. Christensen, Stefan Ekbom, Robin Fong, Alexandra Schuler
  • Publication number: 20140299532
    Abstract: Filtration processes and systems are provided for the separation of a filterable fluid stream by a filtration membrane module with uniform transmembrane pressure and flux along the membrane and internal control of membrane fouling via intermittent periodic reduction of the pressure differential between the permeate and retentate sides of the membrane and/or backwashing cycles during separation, recovery, and/or purification of proteins, peptides, nucleic acids, biologically produced polymers and other compounds or materials from aqueous fluids.
    Type: Application
    Filed: June 20, 2014
    Publication date: October 9, 2014
    Applicant: DANISCO US INC.
    Inventors: Nathaniel T. BECKER, Ryszard BRAUN, Robert I. CHRISTENSEN, Stefan EKBOM, Robin FONG, Alexandra SCHULER
  • Patent number: 8784662
    Abstract: Filtration processes and systems are provided for the separation of a filterable fluid stream by a filtration membrane module with uniform transmembrane pressure and flux along the membrane and internal control of membrane fouling via intermittent periodic reduction of the pressure differential between the permeate and retentate sides of the membrane and/or backwashing cycles during separation, recovery, and/or purification of proteins, peptides, nucleic acids, biologically produced polymers and other compounds or materials from aqueous fluids.
    Type: Grant
    Filed: September 12, 2008
    Date of Patent: July 22, 2014
    Assignee: Danisco US Inc.
    Inventors: Nathaniel T. Becker, Ryszard Braun, Robert I. Christensen, Jr., Stefan Ekbom, Robin Fong, Alexandra Schuler
  • Publication number: 20140141971
    Abstract: A granule having high stability and low dust is described. The granule includes a hydrated barrier material having moderate or high water activity. Also described are methods of producing the granules.
    Type: Application
    Filed: December 16, 2013
    Publication date: May 22, 2014
    Applicant: DANISCO US INC.
    Inventors: Nathaniel T. BECKER, Robert I. CHRISTENSEN, JR., Alfred L. GAERTNER, Mahmood M. GHANI, Douglas A. DALE
  • Publication number: 20130337531
    Abstract: Methods are provided for recovery and formulation of insoluble enzymes from a microbial fermentation broth, without removal of microbial cells or cell debris. Granular and liquid formulations comprising insoluble enzymes are also provided.
    Type: Application
    Filed: June 10, 2013
    Publication date: December 19, 2013
    Inventors: Michael BODO, Robert I. CHRISTENSEN, Rajdeep S. DHALIWAL, Meng H. HENG
  • Publication number: 20120214727
    Abstract: A granule having high stability and low dust is described. The granule includes a hydrated barrier material having moderate or high water activity. Also described are methods of producing the granules.
    Type: Application
    Filed: January 30, 2012
    Publication date: August 23, 2012
    Applicant: Danisco US Inc.
    Inventors: Nathaniel T. Becker, Robert I. Christensen, JR., Alfred L. Gaertner, Mahmood M. Ghani, Douglas A. Dale
  • Publication number: 20110189344
    Abstract: Methods are provided for recovery and formulation of insoluble enzymes from a microbial fermentation broth, without removal of microbial cells or cell debris. Granular and liquid formulations comprising insoluble enzymes are also provided.
    Type: Application
    Filed: June 9, 2009
    Publication date: August 4, 2011
    Inventors: Michael Bodo, Robert I. Christensen, Rajdeep S. Dhaliwal, Meng H. Heng
  • Publication number: 20090120873
    Abstract: Filtration processes and systems are provided for the separation of a filterable fluid stream by a filtration membrane module with uniform transmembrane pressure and flux along the membrane and internal control of membrane fouling via intermittent periodic reduction of the pressure differential between the permeate and retentate sides of the membrane and/or backwashing cycles during separation, recovery, and/or purification of proteins, peptides, nucleic acids, biologically produced polymers and other compounds or materials from aqueous fluids.
    Type: Application
    Filed: September 12, 2008
    Publication date: May 14, 2009
    Inventors: Nathaniel T. Becker, Ryszard Braun, Robert I. Christensen, JR., Stefan Ekbom, Robin Fong, Alexandra Schuler
  • Publication number: 20080206830
    Abstract: A granule having high stability and low dust is described. The granule includes a hydrated barrier material having moderate or high water activity. Also described are methods of producing the granules.
    Type: Application
    Filed: May 1, 2008
    Publication date: August 28, 2008
    Inventors: Nathaniel T. Becker, Robert I. Christensen, Alfred L. Gaertner, Mahmood M. Ghani, Douglas A. Dale
  • Publication number: 20040029756
    Abstract: A granule having high stability and low dust is described. The granule includes a hydrated barrier material having moderate or high water activity. Also described are methods of producing the granules.
    Type: Application
    Filed: July 30, 2003
    Publication date: February 12, 2004
    Inventors: Nathaniel T. Becker, Robert I. Christensen, Alfred L. Gaertner, Mahmood M. Ghani, Douglas A. Dale
  • Patent number: 6680031
    Abstract: A fluid bed processing system with a spraying apparatus in accordance with one embodiment of the present invention includes an expansion chamber and at least one spraying apparatus which extends into the expansion chamber. The spraying apparatus has a plurality of single nozzles which are spaced along the spraying apparatus and has at least one fluid passage connected to each of the single nozzles.
    Type: Grant
    Filed: December 22, 1998
    Date of Patent: January 20, 2004
    Assignee: Genencor International, Inc.
    Inventors: Bruce A. Bisgrove, Ryszard Braun, Robert I. Christensen, Jr., Robert C. Fewkes, Alfred L. Gaertner, John Reynold, David R. Wight, Antti Kosola
  • Patent number: 6602841
    Abstract: A granule having high stability and low dust is described. The granule includes a hydrated barrier material having moderate or high water activity. Also described are methods of producing the granules.
    Type: Grant
    Filed: June 16, 2000
    Date of Patent: August 5, 2003
    Assignee: Genencor International, Inc.
    Inventors: Nathaniel T. Becker, Robert I. Christensen, Jr., Alfred L. Gaertner, Mahmood M. Ghani, Douglas A. Dale
  • Patent number: 6583099
    Abstract: The present invention provides low-density compositions, as well as particulates formed, at least in part, from such compositions. Preferred low-density materials include, for example, hollowspheres, low-density minerals, and low-density wood materials (e.g., sawdust). The low-density compositions of the invention can be formed as particulates, or cores, suitable for use in forming enzyme granules, e.g., marums, layered granules, prills, drum granules, agglomerated granules, or the like. Granules are disclosed having advantageous properties, e.g., low dusting, storage stable, fast enzyme-release profile, low true density, etc. The granules of the invention are especially useful, for example, in liquid detergents and cleaners, such as predominantly aqueous, liquid laundry detergents. In one embodiment, granules are provided having a true, or volumetric, density within a range of from about 0.95 to about 1.4 g/cm3.
    Type: Grant
    Filed: July 1, 2002
    Date of Patent: June 24, 2003
    Inventor: Robert I. Christensen, Jr.
  • Patent number: 6534466
    Abstract: The present invention provides low-density compositions, as well as particulates formed, at least in part, from such compositions. Preferred low-density materials include, for example, hollowspheres, low-density minerals, and low-density wood materials (e.g., sawdust). The low-density compositions of the invention can be formed as particulates, or cores, suitable for use in forming enzyme granules, e.g., marums, layered granules, prills, drum granules, agglomerated granules, or the like. Granules are disclosed having advantageous properties, e.g., low dusting, storage stable, fast enzyme-release profile, low true density, etc. The granules of the invention are especially useful, for example, in liquid detergents and cleaners, such as predominantly aqueous, liquid laundry detergents. In one embodiment, granules are provided having a true, or volumetric, density within a range of from about 0.95 to about 1.4 g/cm3.
    Type: Grant
    Filed: January 7, 2000
    Date of Patent: March 18, 2003
    Assignee: Genencor International, Inc.
    Inventor: Robert I. Christensen, Jr.
  • Publication number: 20020193275
    Abstract: The present invention provides low-density compositions, as well as particulates formed, at least in part, from such compositions. Preferred low-density materials include, for example, hollowspheres, low-density minerals, and low-density wood materials (e.g., sawdust). The low-density compositions of the invention can be formed as particulates, or cores, suitable for use in forming enzyme granules, e.g., marums, layered granules, prills, drum granules, agglomerated granules, or the like. Granules are disclosed having advantageous properties, e.g., low dusting, storage stable, fast enzyme-release profile, low true density, etc. The granules of the invention are especially useful, for example, in liquid detergents and cleaners, such as predominantly aqueous, liquid laundry detergents. In one embodiment, granules are provided having a true, or volumetric, density within a range of from about 0.95 to about 1.4 g/cm3.
    Type: Application
    Filed: July 1, 2002
    Publication date: December 19, 2002
    Inventor: Robert I. Christensen