Patents by Inventor J. David Angerer

J. David Angerer 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).

  • Process and materials for production of glucosamine and N-acetylglucosamine
    Patent number: 8124381
    Abstract: A biosynthetic method for producing glucosamine and N-acetylglucosamine is disclosed. Such a method includes the fermentation of a genetically modified microorganism to produce glucosamine and/or N-acetylglucosamine. Also disclosed are genetically modified microorganisms that are useful for producing glucosamine and N-acetylglucosamine. In addition, methods of recovering N-acetylglucosamine that has been produced by a fermentation process, including methods that result in N-acetylglucosamine of high purity, are described. Also disclosed is a method to produce glucosamine from N-acetylglucosamine.
    Type: Grant
    Filed: December 19, 2007
    Date of Patent: February 28, 2012
    Assignee: Arkion Life Sciences
    Inventors: Ming-De Deng, J. David Angerer, Don Cyron, Alan D. Grund, Thomas A. Jerrell, Jr., Candice Leanna, Owen Mathre, Reinhardt Rosson, Jeff Running, Dave Severson, Linsheng Song, Sarah Wassink
  • PROCESS AND MATERIALS FOR PRODUCTION OF GLUCOSAMINE AND N-ACETYLGLUCOSAMINE
    Publication number: 20120009627
    Abstract: A biosynthetic method for producing glucosamine and N-acetylglucosamine is disclosed. Such a method includes the fermentation of a genetically modified microorganism to produce glucosamine and/or N-acetylglucosamine. Also disclosed are genetically modified microorganisms that are useful for producing glucosamine and N-acetylglucosamine. In addition, methods of recovering N-acetylglucosamine that has been produced by a fermentation process, including methods that result in N-acetylglucosamine of high purity, are described. Also disclosed is a method to produce glucosamine from N-acetylglucosamine.
    Type: Application
    Filed: December 19, 2007
    Publication date: January 12, 2012
    Applicant: BIO-TECHNICAL RESOURSES
    Inventors: Ming-De Deng, J. David Angerer, Don Cyron, Alan D. Grund, Thomas A. Jerrell, Jr., Candice Leanna, Owen Mathre, Reinhardt Rosson, Jeff Running, Dave Severson, Linsheng Song, Sarah Wassink
  • Process and materials for production of glucosamine and N-acetylglucosamine
    Patent number: 7332304
    Abstract: A biosynthetic method for producing glucosamine and N-acetylglucosamine is disclosed. Such a method includes the fermentation of a genetically modified microorganism to produce glucosamine and/or N-acetylglucosamine. Also disclosed are genetically modified microorganisms that are useful for producing glucosamine and N-acetylglucosamine. In addition, methods of recovering N-acetylglucosamine that has been produced by a fermentation process, including methods that result in N-acetylglucosamine of high purity, are described. Also disclosed is a method to produce glucosamine from N-acetylglucosamine.
    Type: Grant
    Filed: July 1, 2003
    Date of Patent: February 19, 2008
    Assignee: Arkion Life Sciences LLC
    Inventors: Ming-De Deng, J. David Angerer, Don Cyron, Alan D. Grund, Thomas A. Jerrell, Jr., Candice Leanna, Owen Mathre, Reinhardt Rosson, Jeff Running, Dave Severson, Linsheng Song, Sarah Wassink
  • Process and materials for production of glucosamine and N-acetylglucosamine
    Publication number: 20040091976
    Abstract: A biosynthetic method for producing glucosamine and N-acetylglucosamine is disclosed. Such a method includes the fermentation of a genetically modified microorganism to produce glucosamine and/or N-acetylglucosamine. Also disclosed are genetically modified microorganisms that are useful for producing glucosamine and N-acetylglucosamine. In addition, methods of recovering N-acetylglucosamine that has been produced by a fermentation process, including methods that result in N-acetylglucosamine of high purity, are described. Also disclosed is a method to produce glucosamine from N-acetylglucosamine.
    Type: Application
    Filed: July 1, 2003
    Publication date: May 13, 2004
    Inventors: Ming-De Deng, J. David Angerer, Don Cyron, Alan D. Grund, Thomas A. Jerrell, Candice Leanna, Owen Mathre, Reinhardt Rosson, Jeff Running, Dave Severson, Linsheng Song, Sarah Wassink
  • Dry acid-chitosan complexes
    Publication number: 20030018176
    Abstract: The invention is an acid-chitosan complex which is made up of chitosan, a sufficient amount of one or more acids, and an effective amount of water. This acid-chitosan is water-soluble in a dry form. A further aspect of this invention is various methods for producing such a water-soluble acid-chitosan complex and methods for using this acid-chitosan complex, particularly for reducing fat absorption in an animal.
    Type: Application
    Filed: September 6, 2001
    Publication date: January 23, 2003
    Inventors: J. David Angerer, Donald M. Cyron, Subramanian Iyer, Thomas A. Jerrell
  • Dry acid-chitosan complexes
    Patent number: 6326475
    Abstract: The invention is an acid-chitosan complex which is made up of chitosan, a sufficient amount of one or more acids, and an effective amount of water. This acid-chitosan is water-soluble in a dry form. A further aspect of this invention is various methods for producing such a water-soluble acid-chitosan complex and methods for using this acid-chitosan complex, particularly for reducing fat absorption in an animal.
    Type: Grant
    Filed: February 25, 2000
    Date of Patent: December 4, 2001
    Assignee: Arkion Life Sciences
    Inventors: J. David Angerer, Donald M. Cyron, Subramanian Iyer, Thomas A. Jerrell
  • High solids low viscosity polysaccharides
    Patent number: 6054511
    Abstract: Hydroxyethylcellulose (HEC), hydrophobically modified hydroxyethylcellulose (HMHEC), hydroxypropylcellulose (HPC), methylhydroxypropylcellulose (MHPC), carboxymethylhydroxyethylcellulose (CMHEC), guar, starch, xanthan, hydroxypropylguar (HP Guar) or carboxymethylhydroxypropylguar (CMHP Guar) are stepwise or continuously reacted with hydrogen peroxide to produce aqueous compositions with a solids content greater than 5% by weight at a viscosity at 25.degree. C. below 9500 mPa.s. It is preferred to use 30-50% hydrogen peroxide to depolymerize the polysaccharide.
    Type: Grant
    Filed: January 15, 1993
    Date of Patent: April 25, 2000
    Assignee: Aqualon Company
    Inventors: J David Angerer, Jashawant Jamanadas Modi, Robert C Szafranski