Patents by Inventor Jean Sevigny

Jean Sevigny 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).

  • Publication number: 20220220135
    Abstract: The invention relates to a novel highly selective and potent NPP1 inhibitors, compositions comprising such, and their use as pharmaceuticals.
    Type: Application
    Filed: April 18, 2020
    Publication date: July 14, 2022
    Applicants: BAR-ILAN UNIVERSITY, ICHILOV TECH LTD, LAVAL UNIVERSITY, UNIVERSITY OF BONN
    Inventors: Hana Bilha FISCHER, Molhm NASSIR, Vadim ZELIKMAN, Uri Moshe ARAD, Jean SEVIGNY, Christa MULLER
  • Publication number: 20190240297
    Abstract: The present invention discloses a novel therapeutic axis NTPDase8 enzyme, P2Y6 and/or P2Y2 receptors, and provides methods, enzymes and/or antagonists for remedying inflammatory bowel diseases.
    Type: Application
    Filed: September 29, 2017
    Publication date: August 8, 2019
    Inventors: Jean SÉVIGNY, Mabrouka SALEM
  • Patent number: 7129074
    Abstract: The present invention relates to a new ectohydroxynucleotidase, namely the NTPDasse8, which allows to regulate platelet aggregation or activation involved in the formation of thrombosis and related diseases. The nucleic acid sequence and the corresponding amino acid sequence and uses thereof are described.
    Type: Grant
    Filed: March 11, 2005
    Date of Patent: October 31, 2006
    Assignee: Université Laval
    Inventor: Jean Sevigny
  • Publication number: 20060182733
    Abstract: A method to render endothelial cells capable of inhibiting platelet and leukocyte-mediated injury and inflammation is described, comprising genetically modifying the cells by inserting DNA encoding ecto-ATP diphosphohydrolase or an oxidation-resistant analog thereof, and expressing a protein having functional ecto-ATP diphosphohydrolase activity, such as the human CD39 protein, by said cells under cellular activating conditions. The method, which can be carried out in vivo, ex vivo or in vitro, has use in allogeneic or xenogeneic transplantation as well as to treat systemic or local inflammatory conditions characterized by platelet aggregation leading to thrombus formation.
    Type: Application
    Filed: April 12, 2006
    Publication date: August 17, 2006
    Inventors: Fritz Bach, Simon Robson, Adrien Beaudoin, Jean Sevigny
  • Publication number: 20050196798
    Abstract: The present invention relates to a new ectohydroxynucleotidase, namely the NTPDasse8, which allows to regulate platelet aggregation or activation involved in the formation of thrombosis and related diseases. The nucleic acid sequence and the corresponding amino acid sequence and uses thereof are described.
    Type: Application
    Filed: March 11, 2005
    Publication date: September 8, 2005
    Applicant: UNIVERSITE LAVAL
    Inventor: Jean Sevigny
  • Patent number: 6800284
    Abstract: The present invention relates to two ATP diphosphohydrolases (ATPDase enzymes) isolated from bovine aorta and pig pancreas, which enzymes have a molecular weight for their catalytic unit of about 78 and 54 Kilodaltons, respectively. A first process for obtaining a highly purified ATPDase is also an object of the present invention. This process has been successfully applied to the purification of both the pancreatic and the aorta enzymes and is deemed to work in the purification of any ATPDase. For both sources of enzymes, the process allows the specific activity of the enzyme to be increased by at least 10,000 fold when compared to the activity retrieved in the crude cell homogenates. The novel process involves an ion exchange chromatography step, a separation on an affinity column, followed by an electrophoresis under non-denaturing conditions.
    Type: Grant
    Filed: February 12, 2001
    Date of Patent: October 5, 2004
    Assignee: Universite de Sherbrooke
    Inventors: Adrien R. Beaudoin, Jean Sevigny
  • Publication number: 20040148645
    Abstract: A method to render endothelial cells capable of inhibiting platelet and leukocyte-mediated injury and inflammation is described, comprising genetically modifying the cells by inserting DNA encoding ecto-ATP diphosphohydrolase or an oxidation-resistant analog thereof, and expressing a protein having functional ecto-ATP diphosphohydrolase activity, such as the human CD39 protein, by said cells under cellular activating conditions. The method, which can be carried out in vivo, ex vivo or in vitro, has use in allogeneic or xenogeneic transplantation as well as to treat systemic or local inflammatory conditions characterized by platelet aggregation leading to thrombus formation.
    Type: Application
    Filed: January 13, 2004
    Publication date: July 29, 2004
    Inventors: Fritz H. Bach, Simon Robson, Adrien R. Beaudoin, Jean Sevigny
  • Publication number: 20030040094
    Abstract: The present invention relates to two ATP diphosphohydrolases (ATPDase enzymes) isolated from bovine aorta and pig pancreas, which enzymes have a molecular weight for their catalytic unit of about 78 and 54 Kilodaltons, respectively. A first process for obtaining a highly purified ATPDase is also an object of the present invention. This process has been successfully applied to the purification of both the pancreatic and the aorta enzymes and is deemed to work in the purification of any ATPDase. For both sources of enzymes, the process allows the specific activity of the enzyme to be increased by at least 10,000 fold when compared to the activity retrieved in the crude cell homogenates. The novel process involves an ion exchange chromatography step, a separation on an affinity column, followed by an electrophoresis under non-denaturing conditions.
    Type: Application
    Filed: February 12, 2001
    Publication date: February 27, 2003
    Inventors: Adrien R. Beaudoin, Jean Sevigny, Fritz H. Bach, Simon C. Robson
  • Patent number: 6287837
    Abstract: The present invention relates to two ATP-diphosphohydrolases (ATPDase enzymes) isolated from bovine aorta and pig pancreas, which enzymes have a molecular weight for their catalytic unit of about 78 and 54 Kilodaltons, respectively. A first process for obtaining a highly purified ATPDase is also an object of the present invention. The process has been successfully applied in the purification of both the pancreatic and the aorta enzymes and is deemed to work in the purification of any ATPDase. For both sources of enzymes, the process allows the specific activity of the enzyme to be increased by at least 10,000 fold when compared to the activity retrieved in the crude cell homogenates. The novel process involves an ion exchange chromatography step, a separation on an affinity column, followed by an electrophoresis under non-denaturing conditions.
    Type: Grant
    Filed: January 2, 1998
    Date of Patent: September 11, 2001
    Assignees: Université de Sherbrooke, Beth Israel Deaconess Medical Center
    Inventors: Adrien R. Beaudoin, Jean Sevigny
  • Patent number: 5798241
    Abstract: The present invention relates to two ATP diphosphohydrolases ATPDase enzymes isolated from bovine aorta and pig pancreas, which enzymes have a molecular weight for their catalytic unit of about 78 and 54 Kilodaltons, respectively. A novel process for obtaining a highly purified ATPDase is also an object of the present invention. This process has been successfully applied to the purification of both the pancreatic and the aorta enzymes and is deemed to work in the purification of any ATPDase. For both sources of enzymes, the process allows the specific activity of the enzyme to be increased by at least 10,000 fold when compared to the activity retrieved in the crude cell homogenates. The novel process involves an ion exchange chromatography step, a separation on an affinity column, followed by an electrophoresis under non-denaturing conditions.
    Type: Grant
    Filed: December 31, 1996
    Date of Patent: August 25, 1998
    Assignee: Universite de Sherbrooke
    Inventors: Adrien R. Beaudoin, Jean Sevigny