Patents by Inventor Robert W. Herzfeld

Robert W. Herzfeld 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: 6382133
    Abstract: A method of increasing the feed efficiency of an animal, the method including applying a suppression agent to surfaces of manure that are exposed to atmosphere, the suppression agent including acidulated plant-based soapstock, the manure located proximate the animal, the method also including providing feed to the animal.
    Type: Grant
    Filed: September 21, 2000
    Date of Patent: May 7, 2002
    Assignee: Agriliance LLC
    Inventors: Joe V. Gednalske, Robert W. Herzfeld, Mark D. Schoenfeld
  • Patent number: 5772722
    Abstract: An odor reducing blend and a method for reducing odor of manure. The odor reducing blend contains an effective amount of acidulated soybean soapstock and an effective amount of an emulsifier. The method includes providing an odor reducing effective amount of a odor reducing blend. The method also includes mixing the odor reducing blend with manure.
    Type: Grant
    Filed: May 30, 1996
    Date of Patent: June 30, 1998
    Assignee: Cenex/Land O'Lakes Agronomy Company
    Inventors: Joe V. Gednalske, Robert W. Herzfeld, William G. Johnson
  • Patent number: 5719102
    Abstract: A method for reducing odor of an odoriferous herbicide is described. The method includes providing a nonionic surfactant blend. The nonionic surfactant blend has an effective concentration of an acidulated soybean soapstock and an effective concentration of nonoxynol. The method also includes mixing the nonionic surfactant blend with the odoriferous herbicide.
    Type: Grant
    Filed: October 19, 1995
    Date of Patent: February 17, 1998
    Assignee: Cenex/Land O'Lakes Agronomy Company
    Inventors: Joe V. Gednalske, Robert W. Herzfeld
  • Patent number: 5624883
    Abstract: The present invention includes a process for methylating free fatty acids in an acidulated soybean soapstock without altering a neutral oil component in the soybean soapstock. The present invention also includes a methylated acidulated soybean soapstock as well a herbicidal mixture that includes the methylated acidulated soybean soapstock.
    Type: Grant
    Filed: January 3, 1996
    Date of Patent: April 29, 1997
    Assignee: Cenex/Land O'Lakes Agronomy Company
    Inventors: Hemendra N. Basu, Joe V. Gednalske, Robert W. Herzfeld
  • Patent number: 5495033
    Abstract: The present invention includes a process for methylating free fatty acids in an acidulated soybean soapstock without altering a neutral oil component in the soybean soapstock. The present invention also includes a methylated acidulated soybean soapstock as well a herbicidal mixture that includes the methylated acidulated soybean soapstock.
    Type: Grant
    Filed: August 29, 1994
    Date of Patent: February 27, 1996
    Assignee: Cenex/Land O'Lakes Agronomy Company
    Inventors: Hemendra N. Basu, Joe V. Gednalske, Robert W. Herzfeld
  • Patent number: 5463180
    Abstract: A nonionic surfactant blend is described for use with odoriferous compatible herbicides. The nonionic surfactant blend includes an effective amount of an acidulated soybean soapstock. The acidulated soybean soapstock includes a range of total fatty acids of about 94%-to-96% by volume and a moisture content of not more than about 5% by volume. The present invention also includes a method for reducing odor of a herbicide. The method includes providing an effective quantity of the improved nonionic surfactant blend for combination with the herbicide.
    Type: Grant
    Filed: November 5, 1993
    Date of Patent: October 31, 1995
    Assignee: Cenex/Land O'Lakes Agronomy Company
    Inventors: Joe V. Gednalske, Robert W. Herzfeld
  • Patent number: 5356861
    Abstract: The present invention includes a homogenous blend for use with a herbicide comprising water, ammonium sulfate and alkyl polysaccharide, with a concentration of about 8.5 pounds of ammonium sulfate or about 2.5 gallons of the blend. The present invention also includes a method for making the homogeneous herbicidal blend, a method for killing broadleaf weeds.
    Type: Grant
    Filed: November 19, 1993
    Date of Patent: October 18, 1994
    Assignee: Cenex/Land O'Lakes Agronomy Company
    Inventors: Joe V. Gednalski, Robert W. Herzfeld
  • Patent number: 5260260
    Abstract: A nonionic surfactant blend for use with compatible herbicides. The nonionic surfactant blend includes an effective amount of an acidulated soybean soapstock. The acidulated soybean soapstock includes a range of total fatty acids of about 94%-to-96% by volume and a moisture content of not more than about 5% by volume. The present invention also includes a method for improving the performance of a herbicide. The method includes providing an effective quantity of the improved nonionic surfactant blend for combination with the herbicide.
    Type: Grant
    Filed: May 11, 1992
    Date of Patent: November 9, 1993
    Assignee: Cenex/Land O'Lakes Agronomy Company
    Inventors: Joe V. Gednalske, Robert W. Herzfeld
  • Patent number: RE36149
    Abstract: .?.The present invention includes a homogenous blend for use with a herbicide comprising water, ammonium sulfate and alkyl polysaccharide, with a concentration of about 8.5 pounds of ammonium sulfate or about 2.5 gallons of the blend. The present invention also includes a method for making the homogeneous herbicidal blend, a method for killing broadleaf weeds..!. .Iadd.A homogeneous adjuvant blend for use with glyphosate. The homogeneous adjuvant blend comprises ammonium sulfate, a sole surfactant, and water. Ammonium sulfate is provided at a concentration of about 8.5 pounds for about 2.5 gallons of the blend. The sole surfactant in the adjuvant blend is alkyl polysaccharide. .Iaddend.
    Type: Grant
    Filed: September 12, 1996
    Date of Patent: March 16, 1999
    Assignee: Cenex/Land O'Lakes Agronomy Company
    Inventors: Joe V. Gednalske, Robert W. Herzfeld