Patents by Inventor Dean Oester

Dean Oester 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: 20080051467
    Abstract: Compounds for controlling aquatic breeding insects including an ethoxylated alcohol with a carbon chain length of about 10 to about 24 carbon atoms and about 0 to about 16 moles of ethylene oxide per mole of alcohol, where the carbon chain is linear or branched with an alkyl group are provided. Methods for making branched alcohol ethoxylated compounds and linear secondary alcohol ethoxylated compounds are also provided. Methods for controlling insects with the compounds are also provided.
    Type: Application
    Filed: July 31, 2007
    Publication date: February 28, 2008
    Inventors: Jianhua Mao, Dean Oester
  • Publication number: 20080003653
    Abstract: A process for the production of ethanol including (a) forming a mash with a slurry of fractionated plant material; (b) saccharifying the mash; (c) adding to the mash a supplement selected from a crude Vitamin B source, a lipid, a vegetable oil distillate, organic nitrogen, and mixtures thereof; (d) fermenting the mash with a microorganism to form a fermentation broth; and (e) recovering ethanol from the fermentation broth is provided. A process for the production of ethanol, including (a) forming a mash with a slurry of nutrient-deficient plant material; (b) saccharifying the mash; (c) adding to the mash a supplement selected from a crude Vitamin B source, a lipid, a vegetable oil distillate, organic nitrogen, and mixtures thereof; (d) fermenting the mash with a microorganism to form a fermentation broth; and (e) recovering ethanol from the fermentation broth is also provided.
    Type: Application
    Filed: February 21, 2007
    Publication date: January 3, 2008
    Inventors: J. Douglas Wenzel, Dean A. Oester
  • Patent number: 6680392
    Abstract: A process for removing polyol impurities from a sorbitan ester solution involving: (a) providing a sorbitan ester solution containing polyol impurities; (b) adding to the sorbitan ester solution a clarifying-effective amount of a silica component; (c) adsorbing the polyol impurities from the sorbitan ester solution onto the silica to form a mixture of sorbitan ester and polyol-containing silica; and (d) removing the polyol-containing silica from the sorbitan ester solution.
    Type: Grant
    Filed: October 7, 1997
    Date of Patent: January 20, 2004
    Assignee: Cognis Corporation
    Inventors: Jeff A. Barnhorst, Dean A. Oester
  • Patent number: 6489496
    Abstract: The present invention pertains to a process for making an alkyl ester of a carboxylic acid via transesterification comprising the steps of: (1) reacting a carboxylic acid ester with an alcohol and an effective amount of a transesterification catalyst in a reaction zone to form a reaction mixture comprised of a product ester and a product alcohol; (2) passing the reaction mixture from step (1) through a centrifugal separation zone wherein the second alcohol is separated from the second ester. The process according to the invention allows for shorter reaction times and improved product yields.
    Type: Grant
    Filed: June 26, 2001
    Date of Patent: December 3, 2002
    Assignee: Cognis Corporation
    Inventors: Jeffrey A. Barnhorst, Michael D. Staley, Dean A. Oester
  • Patent number: 6451773
    Abstract: A composition for treating acneiform eruption containing: (a) a chitosan having a molecular weight ranging from about 500,000 to about 5,000,000 g/mole and a degree of deacylation greater than 80%; (b) an acid-form active ingredient for treating acne; and (c) water.
    Type: Grant
    Filed: March 31, 2000
    Date of Patent: September 17, 2002
    Assignee: Cognis Corporation
    Inventors: Dean A. Oester, Rolf Wachter, Jeffrey A. Gates
  • Publication number: 20020028961
    Abstract: The present invention pertains to a process for making an alkyl ester of a carboxylic acid via transesterification comprising the steps of: (1) reacting a carboxylic acid ester with an alcohol and an effective amount of a transesterification catalyst in a reaction zone to form a reaction mixture comprised of a product ester and a product alcohol; (2) passing the reaction mixture from step (1) through a centrifugal separation zone wherein the second alcohol is separated from the second ester. The process according to the invention allows for shorter reaction times and improved product yields.
    Type: Application
    Filed: June 26, 2001
    Publication date: March 7, 2002
    Inventors: Jeffrey A. Barnhorst, Michael D. Staley, Dean A. Oester
  • Patent number: 6072022
    Abstract: A polyester composition for use in facilitating separation of blood serum or plasma from a cellular portion of blood, the composition containing: (a) a multifunctional acid component comprising: (i) a benzene polycarboxylic acid, and derivatives thereof; and (ii) an aliphatic polycarboxylic acid having from about 16 to about 40 carbon atoms; and (b) a diol component, and wherein the multifunctional acid component and diol component are employed in an equivalent ratio ranging from about 0.8:1.1 to about 1.0:1.3.
    Type: Grant
    Filed: November 3, 1999
    Date of Patent: June 6, 2000
    Assignee: Henkel Corporation
    Inventors: William L. O'Brien, Dean A. Oester, Jeffrey A. Barnhorst, Lidia Kupczyk-Subotkowska, John P. Fisher
  • Patent number: 5726048
    Abstract: A mutant fungal strain, namely G. candidum NRRL Y-552, mutant known as Henkel 9-2-3-9 produces a lipase called "UNLipase" providing a selectivity of 25:1 for oleic acid over palmitic acid by the assay procedure employed. UNLipase has a temperature range of operation of between 0 and 40 degrees Celsius (and no activity over 55 degrees Celsius). The optimum pH ranges are between 7.5 and 8.5. Magnesium cations increase activity, whereas calcium cations are inhibitory. The molecular weight of the protein appears to be 65 kDa by size exclusion chromatography. UNLipase shows a high degree of selectivity for hydrolysis, esterification and transesterification.
    Type: Grant
    Filed: August 9, 1995
    Date of Patent: March 10, 1998
    Assignee: Henkel Corporation
    Inventors: Dean A. Oester, Allen L. Hall, Stephen J. Vesper
  • Patent number: 5677160
    Abstract: An improved fat splitting process which eliminates the induction period encountered during pressure splitting. A partial hydrolysis is conducted prior to pressure splitting by combining a lipase in the presence of water with the fat or oil to be hydrolyzed with added agitation. Pressure splitting of this partially split triglyceride eliminates or reduces the induction period.
    Type: Grant
    Filed: December 14, 1994
    Date of Patent: October 14, 1997
    Assignee: Henkel Corporation
    Inventors: Dean A. Oester, Allen L. Hall, Karl T. Zilch, Kevin W. Anderson
  • Patent number: 5654181
    Abstract: A mutant fungal strain, namely G. candidum NRRL Y-552, mutant known as Henkel 9-2-3-9 produces a lipase called "UNLipase" providing a selectivity of 25:1 for oleic acid over palmitic acid by the assay procedure employed. UNLipase has a temperature range of operation of between 0 and 40 degrees Celsius (and no activity over 55 degrees Celsius). The optimum pH ranges are between 7.5 and 8.5. Magnesium cations increase activity, whereas calcium cations are inhibitory. The molecular weight of the protein appears to be 65 kDa by size exclusion chromatography. UNLipase shows a high degree of selectivity for hydrolysis, esterification and transesterification.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: August 5, 1997
    Assignee: Henkel Corporation
    Inventors: Dean A. Oester, Allen L. Hall, Stephen J. Vesper
  • Patent number: 5591615
    Abstract: A mutant fungal strain, namely G. candidum NRRL Y-552, mutant known as Henkel 9-2-3-9 produces a lipase called "UNLipase" providing a selectivity of 25:1 for oleic acid over palmitic acid by the assay procedure employed. UNLipase has a temperature range of operation of between 0 and 40 degrees Celsius (and no activity over 55 degrees Celsius). The optimum pH ranges are between 7.5 and 8.5. Magnesium cations increase activity, whereas calcium cations are inhibitory. The molecular weight of the protein appears to be 65 kDa by size exclusion chromatography. UNLipase shows a high degree of selectivity for hydrolysis, esterification and transesterification.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: January 7, 1997
    Assignee: Henkel Corporation
    Inventors: Dean A. Oester, Allen L. Hall, Stephen J. Vesper
  • Patent number: 5470741
    Abstract: A mutant fungal strain, namely G. candidum NRRL Y-552, mutant known as Henkel 9-2-3-9 (ATCC 74170) produces a lipase called "UNLipase" providing a selectivity of 25:1 for oleic acid over palmitic acid by the assay procedure employed. UNLipase has a temperature range of operation of between 0 and 40 degrees Celsius (and no activity over 55 degrees Celsius). The optimum pH ranges are between 7.5 and 8.5. Magnesium cations increase activity, whereas calcium cations are inhibitory. The molecular weight of the protein appears to be 65 kDa by size exclusion chromatography. UNLipase shows a high degree of selectivity for hydrolysis, esterification and transesterification.
    Type: Grant
    Filed: July 22, 1992
    Date of Patent: November 28, 1995
    Assignee: Henkel Corporation
    Inventors: Dean A. Oester, Allen L. Hall, Stephen J. Vesper