Patents by Inventor Denis Bourque

Denis Bourque 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).

  • Methylotrophic bacterium for the production of recombinant proteins and other products
    Publication number: 20030157636
    Abstract: The present invention relates to a method of producing a recombinant peptide, a recombinant protein, or a product from metabolic engineering using a genetically modified methylotrophic bacterium, and more particularly to Methylobacterium extorquens ATCC 55366. The method comprises introducing an expression vector into the methylotrophic bacterium, the expression vector comprising a polynucleotide sequence, encoding for a peptide or protein, or allowing for production of a product from metabolic engineering under the control of a regulated promoter. The method also comprises growing the genetically modified methylotrophic bacterium in a minimal salts medium lacking organic sugars and containing methanol. A metal ion may be used for regulating the expression of the polynucleotide sequence by the promoter.
    Type: Application
    Filed: July 5, 2002
    Publication date: August 21, 2003
    Applicant: NATIONAL RESEARCH COUNCIL OF CANADA
    Inventors: Marianne M. Figueira, Louise Laramee, Denis Bourque, Louise Belanger, Denis Groleau, Lyne Morel, Mario Beland, Carlos B. Miguez
  • Welding control unit power supply
    Patent number: 5436427
    Abstract: A welding control unit power supply for providing a substantially constant and powerful DC supply voltage to the internal electronic components of the welding control unit. The DC supply voltage is derived from the high current welding power supply. The DC supply voltage is maintained substantially constant by means of the switching control circuit even upon occurrence of significant voltage variations in the welding power supply. The welding control unit circuit includes a permanently operating failure detection circuit.
    Type: Grant
    Filed: April 11, 1994
    Date of Patent: July 25, 1995
    Assignee: Ultra Optec, Inc.
    Inventor: Denis Bourque
  • Process for the preparation of poly-beta-hydroxybutyric acid polymers
    Patent number: 5434062
    Abstract: The present invention relates to a type of polymer comprising repeating units of formula ##STR1## and in particular to a poly-.beta.-hydroxybutyrate polyester type polymer. The present invention also relates to a microbiological process for the production of the above type of polymer, to a methylotrophic microorganism (bacterium) for use in such a process, and to means for controlling such bioprocesses.
    Type: Grant
    Filed: January 21, 1994
    Date of Patent: July 18, 1995
    Assignee: National Research Council of Canada
    Inventors: Denis Groleau, Denis Bourque, Yves Pomerleau
  • Methylobacterium extorquwns microorganism useful for the preparation of poly-.beta.-hydroxybutyric acid polymers
    Patent number: 5302525
    Abstract: The present invention relates to a type of polymer comprising repeating units of formula ##STR1## and in particular to a poly-.beta.-hydroxybutyrate polyester type polymer. The present invention also relates to a microbiological process for the production of the above type of polymer, to a methylotrophic microorganism (bacterium) for use in such a process, and to means for controlling such bioprocesses.
    Type: Grant
    Filed: November 23, 1992
    Date of Patent: April 12, 1994
    Assignee: National Research Council of Canada
    Inventors: Denis Groleau, Denis Bourque, Yves Pomerieau