Patents by Inventor Helena Maciel

Helena Maciel 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).

  • Polypeptides having an activity in the MTBE degradation path and uses thereof
    Patent number: 7867741
    Abstract: The invention concerns an isolated or purified polypeptide having an activity in the MTBE degradation path, and/or at least one of the catabolic intermediates of MTBE, preferably selected from the group consisting of tert-butyl alcohol (TBA), 2-methyl 1,2-propanediol (2-M1, 2-PD), hydroxyisobutyraldehyde, hydroxyiso-butyric acid (HIBA), said polypeptide being selected from the group consisting of: a) a polypeptide comprising a sequence of amino acids selected from the group consisting of SEQ ID NO:2, SEQ ID NO:4, SEQ ID NO:6, SEQ ID NO:8 or SEQ ID NO:10; b) a polypeptide comprising a sequence of amino acids having at least 70% identity, preferably 75%, 80%, 90%, 95%, 98% or 99% with the sequence of amino acids of a polypeptide as defined in a); a polypeptide as defined in a) or b) whereof the sequence of amino acids comprises a substitution, deletion, insertion, addition or mutation of one or several amino acids over its entire length.
    Type: Grant
    Filed: July 18, 2006
    Date of Patent: January 11, 2011
    Assignees: Institut Francais du Petrole, Conseil National de Recherches du Canada
    Inventors: Nicolas Lopes Ferreira, Diane Labbe, Héléna Maciel, Françoise Fayolle-Guichard, Frédéric Monot, Charles W. Greer
  • Polypeptides Having an Activity in the Mtbe Degradation Path and Uses Thereof
    Publication number: 20080210631
    Abstract: The invention concerns an isolated or purified polypeptide having an activity in the MTBE degradation path, and/or at least one of the catabolic intermediates of MTBE, preferably selected from the group consisting of tert-butyl alcohol (TBA), 2-methyl 1,2-propanediol (2-M1, 2-PD), hydroxyisobutyraldehyde, hydroxyiso-butyric acid (HIBA), said polypeptide being selected from the group consisting of: a) a polypeptide comprising a sequence of amino acids selected from the group consisting of SEQ ID NO:2, SEQ ID NO:4, SEQ ID NO:6, SEQ ID NO:8 or SEQ ID NO:10; b) a polypeptide comprising a sequence of amino acids having at least 70% identity, preferably 75%, 80%, 90%, 95%, 98% or 99% with the sequence of amino acids of a polypeptide as defined in a); a polypeptide as defined in a) or b) whereof the sequence of amino acids comprises a substitution, deletion, insertion, addition or mutation of one or several amino acids over its entire length.
    Type: Application
    Filed: July 18, 2006
    Publication date: September 4, 2008
    Applicants: INSTITUT FRANCAIS DU PETROLE, CONSEIL NATIONAL DE RECHERCHES DU CANADA
    Inventors: Nicolas Lopes Frreira, Diane Labbe, Helena Maciel, Francoise Fayolle-Guichard, Frederic Monot, Charles W. Greer