Patents by Inventor Louis-Philippe Vezina

Louis-Philippe Vezina 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).

  • Bipartite System, Method and Composition for the Constitutive and Inducible Expression of High Levels of Foreign Proteins in Plants
    Publication number: 20090181460
    Abstract: This invention comprises a combined transgene/virus vector system for the expression of heterologous proteins in plants. While exemplified with respect to the bipartite RNA plant virus, Cowpect mosaic virus (CPMV), other bipartite viral systems may be used to advantage according to the method, system and composition described in detail herein.
    Type: Application
    Filed: May 22, 2006
    Publication date: July 16, 2009
    Inventors: George Lomonossoff, Li Liu, Carmen Canizares, Marc-Andre D'Aoust, Louis-Philippe Vezina
  • Promoter for regulating expression of foreign genes
    Patent number: 7125978
    Abstract: The present invention relates to a promoter for regulating expression of foreign genes in transgenic organisms, which comprises a promoter having the identifying characteristics of a promoter having a sequence selected from the group consisting of sequences set forth in SEQ ID NOS:1 to 3 and functional fragments or derivatives thereof, wherein said promoter is adapted to be operationally located with respect to said foreign gene for expression of said gene.
    Type: Grant
    Filed: October 3, 2000
    Date of Patent: October 24, 2006
    Assignee: Medicago Inc.
    Inventors: Louis-Philippe Vézina, Marc-André D'Aoust
  • Method for enhancing the nutritive value of plant extract
    Publication number: 20060156440
    Abstract: The present invention relates to a method for increasing the stability of endogenous proteins recovered from plant cells or plants. The preservation of endogenous proteins integrity of endogenous protein occurs by neutralizing proteolysis in crude extracts, particularly by the use of genetic alteration of plant cells or plants that express recombinant protease inhibitors or altered activity of specific target proteases.
    Type: Application
    Filed: July 29, 2003
    Publication date: July 13, 2006
    Applicant: UNIVERSITE LAVAL
    Inventors: Dominique Michaud, Daniel Rivard, Raphael Anguenot, Sonia Trepanier, Louis-Philippe Vezina, France Brunelle
  • Method for enhancing yield of recombinant protein production from plants
    Publication number: 20050251885
    Abstract: The present invention relates to a method for enhancing the yield of recombinant protein produced in genetically transformed plants. The invention most particularly relates to a method for preventing the undesirable proteolysis of recombinant proteins after harvest of the plant, during processing of the products from the plants. Especially, this invention focuses on introducing protease inhibitors in plants to prevent undesirable proteolysis of recombinant proteins at the time of cell disruption during the extraction process.
    Type: Application
    Filed: July 28, 2003
    Publication date: November 10, 2005
    Applicant: UNIVERSITE LAVAL
    Inventors: Dominique Michaud, Daniel Rivard, Raphael Anguenot, Sonia Trepanier, Louis-Philippe Vezina, France Brunelle
  • Method for regulating transcription of foreign genes
    Patent number: 6420548
    Abstract: The present invention relates to a method of regulating the transcription of transgene in genetically-modified organisms. More specifically, the invention relates to the use of expression vectors harboring the coding sequence of a gene of interest under the transcriptional control of promoting sequences for which activity is regulated by the presence of nitrogen.
    Type: Grant
    Filed: October 3, 2000
    Date of Patent: July 16, 2002
    Assignee: Medicago Inc.
    Inventors: Louis-Philippe Vézina, Marc-André D'Aoust
  • Method for the hydrolysis of starchy materials by sweetpotato endogenous amylases
    Patent number: 5525154
    Abstract: The present invention relates to a method for the hydrolysis of sweetpotato starch which comprises the steps of: a) separating outer and starchy inner tissues of sweetpotato roots; b) heating the separated starchy inner tissues of step a) for a time sufficient for obtaining a suitable slurry; c) preparing an amylase crude extract from sweetpotato roots outer tissues of step a); and d) incubating the slurry of step b) with the extract of step c) for a time sufficient for the complete hydrolysis of starch.
    Type: Grant
    Filed: November 4, 1994
    Date of Patent: June 11, 1996
    Assignees: Universite Laval, Agriculture and Agri-Food Canada
    Inventors: Vital Hagenimana, Ronald E. Simard, Louis-Philippe Vezina