Patents by Inventor Sean K. Daughtry

Sean K. Daughtry 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).

  • Methods of making intermediates from polyhydroxyalkanoates
    Patent number: 7230144
    Abstract: Methods of forming intermediates from PHAs are disclosed.
    Type: Grant
    Filed: December 18, 2002
    Date of Patent: June 12, 2007
    Assignee: Metabolix Inc.
    Inventors: Luhua Zhong, Edward M. Muller, James J. Barber, Joseph Pugach, Robert S. Whitehouse, Sean K. Daughtry
  • Methods of making intermediates from polyhydroxyalkanoates
    Patent number: 6933404
    Abstract: In some embodiments, this invention relates to a method that includes contacting a PHA with an aprotic catalyst to form an ester. The ester has only one monomer unit from the PHA. In certain embodiments, this invention relates to a method that includes treating a PHA-containing non-lyophilized biomass to form an ester, and removing at least some of the ester from the biomass.
    Type: Grant
    Filed: December 18, 2002
    Date of Patent: August 23, 2005
    Assignee: Metabolix Inc.
    Inventors: Luhua Zhong, Edward M. Muller, James J. Barber, Joseph Pugach, Robert S. Whitehouse, Sean K. Daughtry
  • Methods of making intermediates from polyhydroxyalkanoates
    Publication number: 20030162851
    Abstract: Methods of forming intermediates from PHAs are disclosed.
    Type: Application
    Filed: December 18, 2002
    Publication date: August 28, 2003
    Inventors: Luhua Zhong, Edward M. Muller, James J. Barber, Joseph Pugach, Robert S. Whitehouse, Sean K. Daughtry
  • Methods of making intermediates from polyhydroxyalkanoates
    Publication number: 20030158274
    Abstract: Methods of forming intermediates from PHAs are disclosed.
    Type: Application
    Filed: December 18, 2002
    Publication date: August 21, 2003
    Inventors: Luhua Zhong, Edward M. Muller, James J. Barber, Joseph Pugach, Robert S. Whitehouse, Sean K. Daughtry