Patents by Inventor Matthew C. Posewitz

Matthew C. Posewitz 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).

  • Patent number: 9290782
    Abstract: Methods, processes, and systems for the production of lipids and starch from modified algae are disclosed. In one embodiment, the modified algae over-expresses isoamylase and accumulates much higher amounts of starch than unmodified algae. In some embodiments, the modified algae comprises one or more copies of an isoamylase expression construct. In one embodiment, the modified algae is a sta7 Chlamydomonas reinhardtii mutant with a starchless phenotype that has been complemented with one or more copies of the wild-type genomic STA7 isoamylase gene construct. The complemented, modified algae accumulates much greater amount of starch than an unmodified algae and may be used to produce large amounts of starch and/or lipids.
    Type: Grant
    Filed: March 26, 2012
    Date of Patent: March 22, 2016
    Assignee: COLORADO SCHOOL OF MINES
    Inventors: Matthew C. Posewitz, Randor Radakovits, Robert Jinkerson, Victoria H. Work, Jonathan E. Meuser
  • Patent number: 8835153
    Abstract: A process for expression of active [FeFe]-hydrogenase in a host organism that does not contain either the structural gene(s) for [FeFe]-hydrogenases and/or homologues for the maturation genes HydE, HydF and HyG, comprising: cloning the structural hydrogenase gene(s) and/or the maturation genes HydE, HydF and HydG from an organisms that contains these genes into expression plasmids; transferring the plasmids into an organism that lacks a native [FeFe]-hydrogenase or that has a disrupted [FeFe]-hydrogenase and culturing it aerobically; and inducing anaerobiosis to provide [FeFe] hydrogenase biosynthesis and H?2#191 production.
    Type: Grant
    Filed: February 28, 2006
    Date of Patent: September 16, 2014
    Assignee: Alliance for Sustainable Energy, LLC
    Inventors: Michael Seibert, Paul W. King, Maria Lucia Ghirardi, Matthew C. Posewitz, Sharon L. Smolinski
  • Publication number: 20120329099
    Abstract: Methods, processes, and systems for the production of lipids and starch from modified algae are disclosed. In one embodiment, the modified algae over-expresses isoamylase and accumulates much higher amounts of starch than unmodified algae. In some embodiments, the modified algae comprises one or more copies of an isoamylase expression construct. In one embodiment, the modified algae is a sta7 Chlamydomonas reinhardtii mutant with a starchless phenotype that has been complemented with one or more copies of the wild-type genomic STA7 isoamylase gene construct. The complemented, modified algae accumulates much greater amount of starch than an unmodified algae and may be used to produce large amounts of starch and/or lipids.
    Type: Application
    Filed: March 26, 2012
    Publication date: December 27, 2012
    Applicant: Colorado School of Mines
    Inventors: Matthew C. Posewitz, Randor Radakovits, Robert Jinkerson, Victoria H. Work, Jonathan E. Meuser
  • Publication number: 20090087880
    Abstract: A process for expression of active [FeFe]-hydrogenase in a host organism that does not contain either the structural gene(s) for [FeFe]-hydrogenases and/or homologues for the maturation genes HydE, HydF and HyG, comprising: cloning the structural hydrogenase gene(s) and/or the maturation genes HydE, HydF and HydG from an organisms that contains these genes into expression plasmids; transferring the plasmids into an organism that lacks a native [FeFe]-hydrogenase or that has a disrupted [FeFe]-hydrogenase and culturing it aerobically; and inducing anaerobiosis to provide [FeFe] hydrogenase biosynthesis and H?2#191 production.
    Type: Application
    Filed: February 28, 2006
    Publication date: April 2, 2009
    Inventors: Michael Seibert, Paul W. King, Maria Lucia Ghirardi, Matthew C. Posewitz, Sharon L. Smolinski