Patents by Inventor Frank Herkes

Frank Herkes 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).

  • 3-hydroxycarboxylic acid production and use in branched polymers
    Publication number: 20070004017
    Abstract: This invention relates to a process for the preparation of a 3-hydroxycarboxylic acid from a 3-hydroxynitrile. More specifically, 3-hydroxyvaleronitrile is converted to 3-hydroxyvaleric acid in high yield at up to 100% conversion, using as an enzyme catalyst 1) nitrile hydratase activity and amidase activity or 2) nitrilase activity of a microbial cell. 3-Hydroxyvaleric acid is used as a substitute for ?-caprolactone in the preparation of highly branched copolyester.
    Type: Application
    Filed: September 5, 2006
    Publication date: January 4, 2007
    Inventors: Michael Bramucci, Robert Dicosimo, Robert Fallon, John Gavagan, Frank Herkes, Lech Wilczek
  • 3-Hydroxycarboxylic acid production and use in branched polymers
    Patent number: 7138480
    Abstract: This invention relates to a process for the preparation of a 3-hydroxycarboxylic acid from a 3-hydroxynitrile. More specifically, 3-hydroxyvaleronitrile is converted to 3-hydroxyvaleric acid in high yield at up to 100% conversion, using as an enzyme catalyst 1) nitrile hydratase activity and amidase activity or 2) nitrilase activity of a microbial cell. 3-Hydroxyvaleric acid is used as a substitute for ?-caprolactone in the preparation of highly branched copolyester.
    Type: Grant
    Filed: March 3, 2003
    Date of Patent: November 21, 2006
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Michael G. Bramucci, Robert Dicosimo, Robert Fallon, John E. Gavagan, Frank Herkes, Lech Wilczek
  • 3-hydroxycarboxylic acid production and use in branched polymers
    Patent number: 7091011
    Abstract: This invention relates to a process for the preparation of a 3-hydroxycarboxylic acid from a 3-hydroxynitrile. More specifically, 3-hydroxyvaleronitrile is converted to 3-hydroxyvaleric acid in high yield at up to 100% conversion, using as an enzyme catalyst 1) nitrile hydratase activity and amidase activity or 2) nitrilase activity of a microbial cell. 3-Hydroxyvaleric acid is used as a substitute for ?-caprolactone in the preparation of highly branched copolyester.
    Type: Grant
    Filed: March 3, 2003
    Date of Patent: August 15, 2006
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Michael G. Bramucci, Robert Dicosimo, Robert Fallon, John E. Gavagan, Frank Herkes, Lech Wilczek
  • 3-hydroxycarboxylic acid production and use in branched polymers
    Publication number: 20030170837
    Abstract: This invention relates to a process for the preparation of a 3-hydroxycarboxylic acid from a 3-hydroxynitrile. More specifically, 3-hydroxyvaleronitrile is converted to 3-hydroxyvaleric acid in high yield at up to 100% conversion, using as an enzyme catalyst 1) nitrile hydratase activity and amidase activity or 2) nitrilase activity of a microbial cell. 3-Hydroxyvaleric acid is used as a substitute for &egr;-caprolactone in the preparation of highly branched copolyester.
    Type: Application
    Filed: March 3, 2003
    Publication date: September 11, 2003
    Inventors: Michael G. Bramucci, Robert Dicosimo, Robert Fallon, John E. Gavagan, Frank Herkes, Lech Wilczek
  • 3-Hydroxycarboxylic acid production and use in branched polymers
    Publication number: 20030166180
    Abstract: This invention relates to a process for the preparation of a 3-hydroxycarboxylic acid from a 3-hydroxynitrile. More specifically, 3-hydroxyvaleronitrile is converted to 3-hydroxyvaleric acid in high yield at up to 100 % conversion, using as an enzyme catalyst 1) nitrile hydratase activity and amidase activity or 2) nitrilase activity of a microbial cell. 3-Hydroxyvaleric acid is used as a substitute for &egr;-caprolactone in the preparation of highly branched copolyester.
    Type: Application
    Filed: March 3, 2003
    Publication date: September 4, 2003
    Inventors: Michael G. Bramucci, Robert Dicosimo, Robert Fallon, John E. Gavagan, Frank Herkes, Lech Wilczek
  • 3-hydroxycarboxylic acid production and use in branched polymers
    Patent number: 6562603
    Abstract: This invention relates to a process for the preparation of a 3-hydroxycarboxylic acid from a 3-hydroxynitrile. More specifically, 3-hydroxyvaleronitrile is converted to 3-hydroxyvaleric acid in high yield at up to 100% conversion, using as an enzyme catalyst 1) nitrile hydratase activity and amidase activity or 2) nitrilase activity of a microbial cell. 3-Hydroxyvaleric acid is used as a substitute for &egr;-caprolactone in the preparation of highly branched copolyester.
    Type: Grant
    Filed: August 2, 2001
    Date of Patent: May 13, 2003
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Michael G. Bramucci, Robert Dicosimo, Robert Fallon, John E. Gavagan, Frank Herkes, Lech Wilczek
  • 3-Hydroxycarboxylic acid production and use in branched polymers
    Publication number: 20020039770
    Abstract: This invention relates to a process for the preparation of a 3-hydroxycarboxylic acid from a 3-hydroxynitrile. More specifically, 3-hydroxyvaleronitrile is converted to 3-hydroxyvaleric acid in high yield at up to 100% conversion, using as an enzyme catalyst 1) nitrile hydratase activity and amidase activity or 2) nitrilase activity of a microbial cell. 3-Hydroxyvaleric acid is used as a substitute for &egr;-caprolactone in the preparation of highly branched copolyester.
    Type: Application
    Filed: August 2, 2001
    Publication date: April 4, 2002
    Inventors: Michael G. Bramucci, Robert Dicosimo, Robert Fallon, John E. Gavagan, Frank Herkes, Lech Wilczek