Patents by Inventor Daniel W. Lemke

Daniel W. Lemke 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: 9216941
    Abstract: Various methods are provided for metathesizing a feedstock. In one aspect, a method includes providing a feedstock including a natural oil, chemically treating the feedstock under conditions sufficient to diminish catalyst poisons in the feedstock, and, following the treating, combining a metathesis catalyst with the feedstock under conditions sufficient to metathesize the feedstock.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: December 22, 2015
    Assignee: Elevance Renewable Sciences, Inc.
    Inventors: Daniel W. Lemke, Kevin D. Uptain, Francis Amore, Tim Abraham
  • Publication number: 20140121396
    Abstract: Various methods are provided for metathesizing a feedstock. In one aspect, a method includes providing a feedstock including a natural oil, chemically treating the feedstock under conditions sufficient to diminish catalyst poisons in the feedstock, and, following the treating, combining a metathesis catalyst with the feedstock under conditions sufficient to metathesize the feedstock.
    Type: Application
    Filed: December 23, 2013
    Publication date: May 1, 2014
    Applicant: ELEVANCE RENEWABLE SCIENCES, INC.
    Inventors: Daniel W. Lemke, Kevin D. Uptain, Francis Amore, Tim Abraham
  • Patent number: 8642824
    Abstract: Various methods are provided for metathesizing a feedstock. In one aspect, a method includes providing a feedstock comprising a natural oil, chemically treating the feedstock under conditions sufficient to diminish catalyst poisons in the feedstock, and, following the treating, combining a metathesis catalyst with the feedstock under conditions sufficient to metathesize the feedstock.
    Type: Grant
    Filed: August 11, 2008
    Date of Patent: February 4, 2014
    Assignee: Elevance Renewable Sciences, Inc.
    Inventors: Daniel W. Lemke, Kevin D. Uptain, Francis Amore, Tim Abraham
  • Patent number: 8378132
    Abstract: Transesterification systems and methods for producing methyl ester are disclosed. In one embodiment, a method for producing methyl ester includes introducing a first charge into a reactor. The first charge contains a triglyceride-containing fat and an alcohol. The method can also include performing a first transesterification reaction in which the triglyceride-containing fat is reacted with the alcohol to produce a first product. The method can further include settling the first product into a methyl ester-containing layer and a glycerol-containing layer, decanting the glycerol-containing layer after settling from the reactor, mixing a second charge with the first product, and performing a second transesterification reaction after mixing the second charge with the first product.
    Type: Grant
    Filed: February 15, 2008
    Date of Patent: February 19, 2013
    Inventor: Daniel W. Lemke
  • Publication number: 20110160472
    Abstract: Various methods are provided for metathesizing a feedstock. In one aspect, a method includes providing a feedstock comprising a natural oil, chemically treating the feedstock under conditions sufficient to diminish catalyst poisons in the feedstock, and, following the treating, combining a metathesis catalyst with the feedstock under conditions sufficient to metathesize the feedstock.
    Type: Application
    Filed: August 11, 2008
    Publication date: June 30, 2011
    Applicant: Elevance Renewable Sciences, Inc.
    Inventors: Daniel W. Lemke, Kevin D. Uptain, Francis Amore, Tim Abraham
  • Publication number: 20100087671
    Abstract: Transesterification systems and methods for producing methyl ester are disclosed. In one embodiment, a method for producing methyl ester includes introducing a first charge into a reactor. The first charge contains a triglyceride-containing fat and an alcohol. The method can also include performing a first transesterification reaction in which the triglyceride-containing fat is reacted with the alcohol to produce a first product. The method can further include settling the first product into a methyl ester-containing layer and a glycerol-containing layer, decanting the glycerol-containing layer after settling from the reactor, mixing a second charge with the first product, and performing a second transesterification reaction after mixing the second charge with the first product.
    Type: Application
    Filed: February 15, 2008
    Publication date: April 8, 2010
    Applicant: CARGILL, INCORPORATED
    Inventor: Daniel W. Lemke
  • Publication number: 20080306211
    Abstract: Disclosed is a method of reacting glycerol to form polyglycerol or mixed ethers of glycerol or other alcohols (e.g., polyols). In some embodiments, the method comprises reacting glycerol in the presence of a fatty acid-containing compound and a metal catalyst to form polyglycerol. In other embodiments, the method comprises reacting glycerol and/or an alcohol in the presence of a fatty acid-containing compound and a metal catalyst to form a mixed ether.
    Type: Application
    Filed: August 4, 2008
    Publication date: December 11, 2008
    Applicant: CARGILL, INCORPORATED
    Inventors: Daniel W. Lemke, Scott Nivens
  • Patent number: 6169133
    Abstract: The present invention provides antistatic blends which comprise either HMS, benzoic acid, and sodium benzoate or HMS and benzoic acid. Also provided are polyolefin compositions which comprise the antistatic blends of the invention, and methods for making the antistatic blends of the composition.
    Type: Grant
    Filed: June 25, 1997
    Date of Patent: January 2, 2001
    Assignee: Lonza Inc.
    Inventor: Daniel W. Lemke
  • Patent number: 5100907
    Abstract: Methylolated hydantoin fatty acid ester compounds having surfactant and biocidal preservative properties; compositions containing these ester compounds, e.g. solutions, emulsions and dispersions; and a method of killing or inhibiting the growth of microorganisms which includes contacting the microorganisms with such ester compounds.
    Type: Grant
    Filed: May 2, 1990
    Date of Patent: March 31, 1992
    Assignee: Lonza, Inc.
    Inventors: Larry K. Hall, Daniel W. Lemke