Patents by Inventor Dennis D. Otten

Dennis D. Otten 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: 7923052
    Abstract: A method for processing vegetable oil miscella is provided. The method includes steps of feeding vegetable oil miscella to a conditioned polymeric microfiltration membrane, and recovering a permeate stream having a decreased weight percent of phospholipids compared with the weight percent of phospholipids provided in the miscella. The retentate stream can be further processed for the recovery of lecithin. The polymeric microfiltration membrane can be conditioned for the selective separation of phospholipids in the miscella. A method for conditioning a membrane for selective separation of phospholipids from vegetable oil miscella, and the resulting membrane, are provided. The membrane which can be conditioned can be characterized as having an average pore size of between about 0.1? and about 2?.
    Type: Grant
    Filed: January 13, 2009
    Date of Patent: April 12, 2011
    Assignee: Cargill, Incorporated
    Inventors: Bassam Jirjis, Harapanahalli S. Muralidhara, Dennis D. Otten
  • Publication number: 20100018922
    Abstract: A method for processing vegetable oil miscella is provided. The method includes steps of feeding vegetable oil miscella to a conditioned polymeric microfiltration membrane, and recovering a permeate stream having a decreased weight percent of phospholipids compared with the weight percent of phospholipids provided in the miscella. The retentate stream can be further processed for the recovery of lecithin. The polymeric microfiltration membrane can be conditioned for the selective separation of phospholipids in the miscella. A method for conditioning a membrane for selective separation of phospholipids from vegetable oil miscella, and the resulting membrane, are provided. The membrane which can be conditioned can be characterized as having an average pore size of between about 0.1? and about 2?.
    Type: Application
    Filed: January 13, 2009
    Publication date: January 28, 2010
    Applicant: Cargill, Incorporated
    Inventors: Bassam Jirjis, Harapanahalli S. Muralidhara, Dennis D. Otten
  • Patent number: 7494679
    Abstract: A method for processing vegetable oil miscella is provided. The method includes steps of feeding vegetable oil miscella to a conditioned polymeric microfiltration membrane, and recovering a permeate stream having a decreased weight percent of phospholipids compared with the weight percent of phospholipids provided in the miscella. The retentate stream can be further processed for the recovery of lecithin. The polymeric microfiltration membrane can be conditioned for the selective separation of phospholipids in the miscella. A method for conditioning a membrane for selective separation of phospholipids from vegetable oil miscella, and the resulting membrane, are provided. The membrane which can be conditioned can be characterized as having an average pore size of between about 0.1? and about 2?.
    Type: Grant
    Filed: October 4, 2004
    Date of Patent: February 24, 2009
    Assignee: Cargill Incorporated
    Inventors: Bassam Jirjis, Harapanahalli S. Muralidhara, Dennis D. Otten
  • Patent number: 6833149
    Abstract: A method for processing vegetable oil miscella is provided. The method includes steps of feeding vegetable oil miscella to a conditioned polymeric microfiltration membrane, and recovering a permeate stream having a decreased weight percent of phospholipids compared with the weight percent of phospholipids provided in the miscella. The retentate stream can be further processed for the recovery of lecithin. The polymeric microfiltration membrane can be conditioned for the selective separation of phospholipids in the miscella. A method for conditioning a membrane for selective separation of phospholipids from vegetable oil miscella, and the resulting membrane, are provided. The membrane which can be conditioned can be characterized as having an average pore size of between about 0.1&mgr; and about 2&mgr;.
    Type: Grant
    Filed: July 23, 2002
    Date of Patent: December 21, 2004
    Assignee: Cargill, Incorporated
    Inventors: Bassam Jirjis, Harapanahalli S. Muralidhara, Dennis D. Otten
  • Publication number: 20030072856
    Abstract: A method for processing vegetable oil miscella is provided. The method includes steps of feeding vegetable oil miscella to a conditioned polymeric microfiltration membrane, and recovering a permeate stream having a decreased weight percent of phospholipids compared with the weight percent of phospholipids provided in the miscella. The retentate stream can be further processed for the recovery of lecithin. The polymeric microfiltration membrane can be conditioned for the selective separation of phospholipids in the miscella. A method for conditioning a membrane for selective separation of phospholipids from vegetable oil miscella, and the resulting membrane, are provided. The membrane which can be conditioned can be characterized as having an average pore size of between about 0.1&mgr; and about 2&mgr;.
    Type: Application
    Filed: July 23, 2002
    Publication date: April 17, 2003
    Inventors: Bassam Jirjis, Harapanahalli S. Muralidhara, Dennis D. Otten
  • Patent number: 6376689
    Abstract: A single-step acid degumming/decolorizing process removes chlorophyll-type compounds from vegetable oils from seeds, especially frost damaged seeds which have large amounts of chlorophyll-type compounds. A mixture of aqueous sulfuric and phosphoric acids is blended with the oil to remove chlorophyll-type compounds from the oil. The purified oil has less than about 5 ppm chlorophyll-type compounds, less than about 50 ppm phosphorus and less than about 1.0 weight percent free fatty acids.
    Type: Grant
    Filed: September 2, 1999
    Date of Patent: April 23, 2002
    Assignee: Cargill, Incorporated
    Inventors: Harapanahalli S. Muralidhara, Gary F. Seymour, Bassam F. Jirjis, Dennis D. Otten, Xiaohong Luo
  • Publication number: 20010018088
    Abstract: A method for removing phospholipids from vegetable oil miscella is provided. The method includes steps of feeding vegetable oil miscella to a conditioned polymeric microfiltration membrane, and recovering a permeate stream having a decreased weight percent of phospholipids compared with the weight percent of phospholipids provided in the miscella. The polymeric microfiltration membrane can be conditioned for the selective separation of phospholipids in the miscella. A method for conditioning a membrane for selective separation of phospholipids from vegetable oil miscella, and the resulting membrane, are provided. The membrane which can be conditioned can be characterized as having an average pore size of between about 0.1&mgr; and about 2&mgr;.
    Type: Application
    Filed: March 27, 2001
    Publication date: August 30, 2001
    Applicant: Cargill, Incorporated
    Inventors: Bassam Jirjis, Harapanahalli S. Muralidhara, Dennis D. Otten
  • Patent number: 6207209
    Abstract: A method for removing phospholipids from vegetable oil miscella is provided. The method includes steps of feeding vegetable oil miscella to a conditioned polymeric microfiltration membrane, and recovering a permeate stream having a decreased weight percent of phospholipids compared with the weight percent of phospholipids provided in the miscella. The polymeric microfiltration membrane can be conditioned for the selective separation of phospholipids in the miscella. A method for conditioning a membrane for selective separation of phospholipids from vegetable oil miscella, and the resulting membrane, are provided. The membrane which can be conditioned can be characterized as having an average pore size of between about 0.1&mgr;and about 2&mgr;.
    Type: Grant
    Filed: January 14, 1999
    Date of Patent: March 27, 2001
    Assignee: Cargill, Incorporated
    Inventors: Bassam Jirjis, Harapanahalli S. Muralidhara, Dennis D. Otten