Patents by Inventor John D. Hilgren

John D. Hilgren 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).

  • METHOD AND COMPOSITION FOR WASHING POULTRY DURING PROCESSING
    Publication number: 20080199562
    Abstract: The present invention relates to compositions including peroxyacetic acid and peroxyoctanoic acid and methods for reducing microbial contamination on poultry. The methods include the step of applying a mixed peroxycarboxylic acid composition to poultry.
    Type: Application
    Filed: February 11, 2008
    Publication date: August 21, 2008
    Applicant: ECOLAB INC.
    Inventors: John D. Hilgren, Timothy A. Gutzmann, Robert D. Hei
  • Method and composition for washing poultry during processing
    Patent number: 7381439
    Abstract: The present invention relates to compositions including peroxyacetic acid and peroxyoctanoic acid and methods for reducing microbial contamination on poultry. The methods include the step of applying a mixed peroxycarboxylic acid composition to poultry.
    Type: Grant
    Filed: April 12, 2004
    Date of Patent: June 3, 2008
    Assignee: Ecolab Inc.
    Inventors: John D. Hilgren, Timothy A. Gutzmann, Robert D. P. Hei
  • Method and composition for washing poultry during processing
    Patent number: 7316824
    Abstract: The present invention relates to compositions including peroxyacetic acid and peroxyoctanoic acid and methods for reducing microbial contamination on poultry. The methods include the step of applying a mixed peroxycarboxylic acid composition to poultry.
    Type: Grant
    Filed: September 16, 2004
    Date of Patent: January 8, 2008
    Assignee: Ecolab Inc.
    Inventors: John D. Hilgren, Timothy A. Gutzmann, Robert D. P. Hei, Roger J. A. Tippett
  • Method for cleaning poultry
    Patent number: 7288274
    Abstract: An apparatus (10) for washing eviscerated poultry carcasses (12) has a housing (11), a conveyor (15a) for moving the shackled poultry carcasses through the housing. A guide bar (24) tilts the poultry carcasses (12) from a vertical position for spraying by a first set of nozzles (23). The first set of nozzles (23) delivers a cleaning solution (100) at a sufficient flow rate and line pressure, whereby a portion of the cleaning solution (100) is deflected back out the rear opening (12d) of the poultry carcass (12).
    Type: Grant
    Filed: January 8, 2004
    Date of Patent: October 30, 2007
    Assignee: Ecolab Inc.
    Inventors: John D. Hilgren, Scott P. Bennett, Gabriel M. Miller
  • Method and composition for washing poultry during processing
    Publication number: 20040191399
    Abstract: The present invention relates to compositions including peroxyacetic acid and peroxyoctanoic acid and methods for reducing microbial contamination on poultry. The methods include the step of applying a mixed peroxycarboxylic acid composition to poultry.
    Type: Application
    Filed: April 12, 2004
    Publication date: September 30, 2004
    Applicant: Ecolab Inc.
    Inventors: John D. Hilgren, Timothy A. Gutzmann, Robert D. P. Hei
  • Peroxycarboxylic acid compositions and methods of use against microbial spores
    Patent number: 6627657
    Abstract: Compositions having antimicrobial activity against a variety of microorganisms, including vegetative bacteria, bacterial spores, fungi, and fungal spores are particularly useful for microbiocidal treatments of a variety of substances. More specifically, compositions have antibmicrobial activity against microorganisms of the Bacillus cereus group such as Bacillus cereus, Bacillus mycoides, Bacillus anthracis, and Bacillus thuringiensis are particularly useful. Compositions including hydrogen peroxide, a carboxylic acid, and a peroxycarboxylic acid in which the weight ratio of the peroxycarboxylic acid to the hydrogen peroxide is at least 4:1 are effective against microorganisms, particularly bacterial spores. Such compositions include a reduced amount of hydrogen peroxide relative to the amount of peroxycarboxylic acid as compared to conventional compositions. Compositions can also include a quaternary ammonium compound, a stabilizing agent, a surfactant, a hydrotrope, or other additives.
    Type: Grant
    Filed: March 22, 2000
    Date of Patent: September 30, 2003
    Assignee: Ecolab Inc.
    Inventors: John D. Hilgren, Francis L. Richter, Duane J. Reinhardt, Joy A. Salverda, Christina L. Rahm
  • Method and composition for washing poultry during processing
    Publication number: 20030148727
    Abstract: The present invention relates to compositions including peroxyacetic acid and peroxyoctanoic acid and methods for reducing microbial contamination on poultry. The methods include the step of applying a mixed peroxycarboxylic acid composition to poultry.
    Type: Application
    Filed: February 3, 2003
    Publication date: August 7, 2003
    Applicant: Ecolab Inc.
    Inventors: John D. Hilgren, Timothy A. Gutzmann, Robert D. P. Hei
  • Method and composition for washing poultry during processing
    Patent number: 6514556
    Abstract: The present invention relates to compositions including peroxyacetic acid and peroxyoctanoic acid and methods for reducing microbial contamination on poultry. The methods include the step of applying a mixed peroxycarboxylic acid composition to poultry.
    Type: Grant
    Filed: December 15, 2000
    Date of Patent: February 4, 2003
    Assignee: Ecolab Inc.
    Inventors: John D. Hilgren, Timothy A. Gutzmann, Robert D. P. Hei
  • Method and composition for washing poultry during processing
    Publication number: 20020119743
    Abstract: The present invention relates to compositions including peroxyacetic acid and peroxyoctanoic acid and methods for reducing microbial contamination on poultry. The methods include the step of applying a mixed peroxycarboxylic acid composition to poultry.
    Type: Application
    Filed: December 15, 2000
    Publication date: August 29, 2002
    Inventors: John D. Hilgren, Timoty A. Gutzmann