Patents by Inventor David Lessard

David Lessard 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: 10561735
    Abstract: The instant invention relates to a solid product comprising a liquid biologically active agent which is intimately associated to a stabilizing agent; particularly a solid product that can be reconstituted to a clear, stable, stabilized nanodispersion or loaded micelles comprising a polymer as a stabilizing agent and a liquid, preferably water immiscible, biologically active agent. The instant invention is further directed toward a process for the production of the above solid product; particularly to micelles or nanodispersions produced by hydration of a cake or powder of the solid product, produced via an effective treatment of a stabilized solution comprising for example a polymer as a stabilizing agent, such as an amphiphilic block copolymer or a small molecular weight surfactant, loaded with a liquid biologically active agent, such as propofol, an optional additive, and a suitable solvent.
    Type: Grant
    Filed: November 20, 2017
    Date of Patent: February 18, 2020
    Assignees: Paladin Labs Inc., Paladin Labs Europe Limited, Paladin Labs (Barbados) Inc.
    Inventors: Francois Ravenelle, Sandra Gori, David Lessard, Laibin Luo, Dorothee Le Garrec, Damon Smith
  • Patent number: 10252657
    Abstract: A headrest for a seat of a vehicle includes a body securable to the seat, a side portion adjacent the body, a receiver pivotally attached to the body, a slide attached to the side portion so as to be movable along the receiver between a first position in which the side portion is in a retracted position and a second position in which the side portion is in an extended position, and a friction member on one of the receiver and the slide. A securing mechanism causes the friction member to hold the slide in a selected position relative to the receiver.
    Type: Grant
    Filed: December 4, 2015
    Date of Patent: April 9, 2019
    Assignee: BOMBARDIER INC.
    Inventor: David Lessard
  • Publication number: 20180140706
    Abstract: The instant invention relates to a solid product comprising a liquid biologically active agent which is intimately associated to a stabilizing agent; particularly a solid product that can be reconstituted to a clear, stable, stabilized nanodispersion or loaded micelles comprising a polymer as a stabilizing agent and a liquid, preferably water immiscible, biologically active agent. The instant invention is further directed toward a process for the production of the above solid product; particularly to micelles or nanodispersions produced by hydration of a cake or powder of the solid product, produced via an effective treatment of a stabilized solution comprising for example a polymer as a stabilizing agent, such as an amphiphilic block copolymer or a small molecular weight surfactant, loaded with a liquid biologically active agent, such as propofol, an optional additive, and a suitable solvent.
    Type: Application
    Filed: November 20, 2017
    Publication date: May 24, 2018
    Inventors: Francois Ravenelle, Sandra Gori, David Lessard, Laibin Luo, Dorothee Le Garrec, Damon Smith
  • Publication number: 20170368970
    Abstract: A headrest for a seat of a vehicle includes a body securable to the seat, a side portion adjacent the body, a receiver pivotally attached to the body, a slide attached to the side portion so as to be movable along the receiver between a first position in which the side portion is in a retracted position and a second position in which the side portion is in an extended position, and a friction member on one of the receiver and the slide. A securing mechanism causes the friction member to hold the slide in a selected position relative to the receiver.
    Type: Application
    Filed: December 4, 2015
    Publication date: December 28, 2017
    Inventor: David LESSARD
  • Publication number: 20160193341
    Abstract: The instant invention relates to a solid product comprising a liquid biologically active agent which is intimately associated to a stabilizing agent; particularly a solid product that can be reconstituted to a clear, stable, stabilized nanodispersion or loaded micelles comprising a polymer as a stabilizing agent and a liquid, preferably water immiscible, biologically active agent. The instant invention is further directed toward a process for the production of the above solid product; particularly to micelles or nanodispersions produced by hydration of a cake or powder of the solid product, produced via an effective treatment of a stabilized solution comprising for example a polymer as a stabilizing agent, such as an amphiphilic block copolymer or a small molecular weight surfactant, loaded with a liquid biologically active agent, such as propofol, an optional additive, and a suitable solvent.
    Type: Application
    Filed: September 3, 2015
    Publication date: July 7, 2016
    Inventors: Francois Ravenelle, Sandra Gori, David Lessard, Laibin Luo, Dorothee Le Garrec, Damon Smith
  • Publication number: 20140323587
    Abstract: The instant invention relates to a solid product comprising a liquid biologically active agent which is intimately associated to a stabilizing agent; particularly a solid product that can be reconstituted to a clear, stable, stabilized nanodispersion or loaded micelles comprising a polymer as a stabilizing agent and a liquid, preferably water immiscible, biologically active agent. The instant invention is further directed toward a process for the production of the above solid product; particularly to micelles or nanodispersions produced by hydration of a cake or powder of the solid product, produced via an effective treatment of a stabilized solution comprising for example a polymer as a stabilizing agent, such as an amphiphilic block copolymer or a small molecular weight surfactant, loaded with a liquid biologically active agent, such as propofol, an optional additive, and a suitable solvent.
    Type: Application
    Filed: December 19, 2013
    Publication date: October 30, 2014
    Applicants: PALADIN LABS INC., PALADIN LABS (BARBADOS) INC., PALADIN LABS EUROPE LIMITED
    Inventors: Francois Ravenelle, Sandra Gori, David Lessard, Laibin Luo, Dorothee Le Garrec, Damon Smith
  • Publication number: 20130039864
    Abstract: The disclosure relates to a non-intravenous dosage for administration of a liquid biologically active agent. The dosage form contains a solid formulation of the liquid biologically active agent, e.g. propofol, in intimate association with at least one stabilizing agent, e.g. an amphiphilic polymer or surfactant. A liquid biologically active agent is converted to a solid product, e.g. a powder, that can be easily incorporated into a number of different non-intravenous dosage forms. Upon hydration, a nanodispersion or micelle loaded with the active agent is formed. The dosage form can provide a non-intravenous route of administration for active agents that are typically only administered intravenously. Methods, uses, kits and commercial packages related to the non-intravenous dosage form are also disclosed.
    Type: Application
    Filed: April 21, 2011
    Publication date: February 14, 2013
    Inventors: Francois Ravenelle, Dorothee Le Garrec, David Lessard, Sandra Gori, Damon Smith, Miloud Rahmouni, Vinayak Sant
  • Publication number: 20120289606
    Abstract: The instant invention relates to a solid product comprising a liquid biologically active agent which is intimately associated to a stabilizing agent; particularly a solid product that can be reconstituted to a clear, stable, stabilized nanodispersion or loaded micelles comprising a polymer as a stabilizing agent and a liquid, preferably water immiscible, biologically active agent. The instant invention is further directed toward a process for the production of the above solid product; particularly to micelles or nanodispersions produced by hydration of a cake or powder of the solid product, produced via an effective treatment of a stabilized solution comprising for example a polymer as a stabilizing agent, such as an amphiphilic block copolymer or a small molecular weight surfactant, loaded with a liquid biologically active agent, such as propofol, an optional additive, and a suitable solvent.
    Type: Application
    Filed: July 19, 2012
    Publication date: November 15, 2012
    Inventors: François Ravenelle, Sandra Gori, David Lessard, Laibin Luo, Dorothée Le Garrec, Damon Smith
  • Patent number: 7838600
    Abstract: The instant invention provides a two-step polymerization process for preparing amphiphilic poly(N-vinyl-2-pyrrolidone), (PVP)-block-polyester copolymers and other diblock and triblock copolymers consisting of PVP as one block. The block copolymers of the invention can be used as vehicles for drug delivery.
    Type: Grant
    Filed: September 16, 2008
    Date of Patent: November 23, 2010
    Assignees: Labopharm, Inc., Labopharm Europe Limited, Labopharm (Barbados) Limited
    Inventors: Laibin Luo, David Lessard, Sandra Gori, Maxime Ranger, Yuan Wang, Julie Lafreniere, Jean-Francois Meunier, Genevieve Bibeau, Frederic Lebrun, Lu Wei Liu
  • Publication number: 20090258071
    Abstract: The invention provides compositions and methods for the targeted, in particular, pH targeted, delivery of pharmaceutically active agents in mammals. The compositions comprise pH sensitive diblock copolymers, which permit the release of the pharmaceutically active agent when exposed to an environment having a particular pH. The compositions are particularly useful for the oral delivery of water insoluble pharmaceutically active agents.
    Type: Application
    Filed: March 20, 2009
    Publication date: October 15, 2009
    Applicant: Labopharm, Inc.
    Inventors: David Lessard, Laibin Luo, Dorothee Le Garrec, Damon Smith
  • Publication number: 20090012240
    Abstract: The instant invention provides a two-step polymerization process for preparing amphiphilic poly(N-vinyl-2-pyrrolidone), (PVP)-block-polyester copolymers and other diblock and triblock copolymers consisting of PVP as one block. The block copolymers of the invention can be used as vehicles for drug delivery.
    Type: Application
    Filed: September 16, 2008
    Publication date: January 8, 2009
    Inventors: Laibin Luo, David Lessard, Sandra Gori, Maxime Ranger, Yuan Wang, Julie Lafreniere, Jean-Francois Meunier, Genevieve Bibeau, Frederic Lebrun, Lu Wei Liu
  • Publication number: 20080027205
    Abstract: The instant invention provides a two-step polymerization process for preparing amphiphilic poly(N-vinyl-2-pyrrolidone), (PVP)-block-polyester copolymers and other diblock and triblock copolymers consisting of PVP as one block. The block copolymers of the invention can be used as vehicles for drug delivery.
    Type: Application
    Filed: August 6, 2007
    Publication date: January 31, 2008
    Inventors: Laibin Luo, David Lessard, Sandra Gori, Maxime Ranger, Yuan Wang, Julie Lafreniere, Jean-Francois Meunier, Genevieve Bibeau, Frederic Lebrun, Lu Liu
  • Patent number: 7262253
    Abstract: The instant invention provides a two-step polymerization process for preparing amphiphilic poly(N-vinyl-2-pyrrolidone), (PVP)-block-polyester copolymers and other diblock and triblock copolymers consisting of PVP as one block. The block copolymers of the invention can be used as vehicles for drug delivery.
    Type: Grant
    Filed: December 2, 2003
    Date of Patent: August 28, 2007
    Assignee: Labopharm, Inc.
    Inventors: Laibin Luo, David Lessard, Sandra Gori, Maxime Ranger, Yuan Wang, Julie Lafreniere, Jean-Francois Meunier, Genevieve Bibeau, Frederic Lebrun, Lu Wei Liu
  • Publication number: 20070182055
    Abstract: A method of forming a coated medical device is described. A coating may be applied inline to a continuous tubing formed by extrusion, prior to cutting and secondary operations. Thus, inefficient and labor-intensive steps associated with preparing individual tubes for coating may be avoided. The method may include forcing a flowable material through an exit port of an extruder, depositing a coating onto at least a portion of the continuous length of extruded tubing after the tubing is forced through the exit port, cutting the coated tubing to a desired length after depositing the coating, and performing one or more secondary operations on the coated tube at a temperature in the range of from about 15° C. to about 375° C.
    Type: Application
    Filed: February 1, 2007
    Publication date: August 9, 2007
    Applicants: Cook Incorporated, Sabin Corporation
    Inventors: Scott Eells, David Lessard
  • Publication number: 20060212110
    Abstract: Described are vascular valve devices having valve elements formed of flexible material and at least one removable frame element. Also described are methods for using such devices in the vascular system and in particular in the venous system to treat venous insufficiency.
    Type: Application
    Filed: March 17, 2004
    Publication date: September 21, 2006
    Inventors: Thomas Osborne, Brian Case, David Lessard, Neal Fearnot
  • Publication number: 20060198891
    Abstract: The instant invention relates to a solid product comprising a liquid biologically active agent which is intimately associated to a stabilizing agent; particularly a solid product that can be reconstituted to a clear, stable, stabilized nanodispersion or loaded micelles comprising a polymer as a stabilizing agent and a liquid, preferably water immiscible, biologically active agent. The instant invention is further directed toward a process for the production of the above solid product; particularly to micelles or nanodispersions produced by hydration of a cake or powder of the solid product, produced via an effective treatment of a stabilized solution comprising for example a polymer as a stabilizing agent, such as an amphiphilic block copolymer or a small molecular weight surfactant, loaded with a liquid biologically active agent, such as propofol, an optional additive, and a suitable solvent.
    Type: Application
    Filed: November 25, 2005
    Publication date: September 7, 2006
    Inventors: Francois Ravenelle, Sandra Gori, David Lessard, Laibin Luo, Dorothee Garrec, Damon Smith
  • Publication number: 20060016064
    Abstract: A medical device (110) including a catheter shaft (111) and a unitarily and continuously formed portion (108) having a varying durometer, and optionally including an expandable balloon (18, 118). One or both of the unitarily and continuously formed portion (108) and the balloon (18, 118) are made from an irradiation cross-linked or cross-linkable mixture of a polyamide elastomer and at least one additional cross-linking reactant. The polyamide elastomer can be a polyester amide, a polyether ester amide or a polyether amide, and is preferably a nylon block copolymer. The aromatic molecule can be 1,3,5 triethyl benzene; 1,2,4 triethyl benzene; and 1,3,5 triisopropyl benzene. The cross-linking reactant can be: (a) a difunctional material, (b) a trifunctional material, (c) a tetrafunctional material, or (d) an aromatic molecule containing at least two ring substituents, each of the ring substituents having labile hydrogens at a benzylic site therein.
    Type: Application
    Filed: March 30, 2004
    Publication date: January 26, 2006
    Inventors: Scott Boatman, David Burton, Michael Hoffa, Thomas Osborne, David Drewes, David Lessard, Maggie Hupcey
  • Publication number: 20050119404
    Abstract: The instant invention provides a two-step polymerization process for preparing amphiphilic poly(N-vinyl-2-pyrrolidone), (PVP)-block-polyester copolymers and other diblock and triblock copolymers consisting of PVP as one block. The block copolymers of the invention can be used as vehicles for drug delivery.
    Type: Application
    Filed: December 2, 2003
    Publication date: June 2, 2005
    Inventors: Laibin Luo, David Lessard, Sandra Gori, Maxime Ranger, Yuan Wang, Julie Lafreniere, Jean-Francois Meunier, Genevieve Bibeau, Frederic Lebrun, Lu Liu
  • Publication number: 20050059958
    Abstract: Catheters having an overmolded hub are disclosed. The overmolded catheter hubs may include one or more access hubs that are overmolded with an overmold material. The catheter hub may also be formed as a single piece from the overmold material. The overmolded construction can result in a stronger bond between the catheter body and the hub and can provide for access hubs having sufficient clarity for the observation of air bubbles in a contained fluid. The disclosed catheter hubs may also demonstrate improved balloon deflation rates when utilized with a catheter body having a distal balloon.
    Type: Application
    Filed: September 9, 2004
    Publication date: March 17, 2005
    Inventors: David Lessard, Scott Eells, Gregory Frankland, David Drewes