Patents by Inventor Philippe Laval
Philippe Laval 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).
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Patent number: 11827747Abstract: The present invention concerns a polymer comprising repetitive units having the following formula (I) wherein R1 is H or Me; L is a linker; R2 is the side chain of an ?-amino acid being other than arginine; m is 0 or an integer comprised from 1 to 10; n is an integer comprised from 1 to 10; and X— is a counterion.Type: GrantFiled: May 6, 2020Date of Patent: November 28, 2023Assignees: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, INSTITUT NATIONAL DE LA SANTÉ ET DE LA RECHERCHE MÉDICALE (INSERM), UNIVERSITÉ DE STRASBOURGInventors: Fouzia Boulmedais, Delphine Chan-Seng, Nicolas Zydziak, Philippe Lavalle
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Patent number: 11602578Abstract: The present invention concerns a polyelectrolyte coating comprising at least one polycationic layer consisting of at least one polycation consisting of n repetitive units having the formula (1) and at least one polyanionic layer consisting of hyaluronic acid. The polyelectrolyte coating has a biocidal activity and the invention thus further refers to the use of said polyelectrolyte coating for producing a device, in particular a bacteriostatic medical device, more particularly an implantable device, comprising said polyelectrolyte coating, and a method for preparing said device and a kit.Type: GrantFiled: November 2, 2018Date of Patent: March 14, 2023Assignees: Université de Strasbourg, Institut National De La Sante Et De La Recherche Medicale (INSERM), Protip MedicalInventors: Philippe Lavalle, Pierre Schaaf, Nihal Engin Vrana, Angela Mutschler, Cynthia Calligaro, Lorène Tallet
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Patent number: 11471558Abstract: The present invention concerns a polyelectrolyte coating comprising at least one polycationic layer consisting of at least one polycation consisting of n repetitive units having the formula (1) and at least one polyanionic layer consisting of hyaluronic acid. The polyelectrolyte coating has a biocidal activity and the invention thus further refers to the use of said polyelectrolyte coating for producing a device, in particular a bacteriostatic medical device, more particularly an implantable device, comprising said polyelectrolyte coating, and a method for preparing said device and a kit.Type: GrantFiled: May 2, 2017Date of Patent: October 18, 2022Assignees: INSTITUT NATIONAL DE LA SANTE ET DE LA RECHERCHE MEDICALE (INSERM), UNIVERSITÉ DE STRASBOURG, PROTIP MEDICALInventors: Philippe Lavalle, Pierre Schaaf, Nihal Engin Vrana, Angela Mutschler
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Publication number: 20220211914Abstract: The present invention concerns a hydrogel comprising hyaluronic acid (HA) or a derivative thereof, loaded with at least one positively charged antimicrobial peptide, wherein said HA or derivative thereof is cross-linked with a cross-linking agent at the level of its hydroxyl moieties while the carboxyl moieties of HA or derivative thereof remain free and said HA or derivative thereof remains negatively charged; and a method for preparing said loaded hydrogel.Type: ApplicationFiled: April 30, 2020Publication date: July 7, 2022Inventors: Philippe Lavalle, Cynthia Calligaro, Varvara Gribova, Lorène Tallet, Nihal Engin Vrana
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Patent number: 10864296Abstract: A polyelectrolyte coating comprises at least one polycationic layer consisting of at least one polyarginine as herein defined and at least one polyanionic layer consisting of hyaluronic acid. The polyelectrolyte coating has a biocidal activity and the invention thus further refers to the use of said polyelectrolyte coating for producing a device, in particular a bacteriostatic medical device, more particularly an implantable device, comprising said polyelectrolyte coating, and a method for preparing said device and a kit. Also disclosed is a method of preventing a bacterial infection in an individual.Type: GrantFiled: July 11, 2017Date of Patent: December 15, 2020Assignees: INSTITUT NATIONAL DE LA SANTE ET DE LA RECHERCHE MEDICALE (INSERM), UNIVERSITÉ DE STRASBOURG, PROTIP MEDICALInventors: Philippe Lavalle, Pierre Schaaf, Nihal Engin Vrana, Angela Mutschler
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Patent number: 9813060Abstract: An actuator for controlling the operation of an apparatus comprises a panel (16) and an acoustic sensor (26). The panel provides a partition within a building structure, while the acoustic sensor is adapted to detect acoustic waves propagating through the panel. When a user exerts pressure against the panel, the sensor detects the acoustic waves that are formed and emits signals for controlling the operation of an apparatus, such as a doorbell, a light source, a television, a sound system, a ventilation system, a window blind, a radio or an alarm.Type: GrantFiled: November 22, 2011Date of Patent: November 7, 2017Assignee: Saint-Gobain Placo SASInventors: Marie-Virginie Ehrensperger, Paul-Henri Guering, Philippe Laval, Richard Morlat, Jean-Louis Mongrolle, Yves Benkemoun, Christelle Pousse
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Patent number: 8775534Abstract: A method for enhancing an electronic message, referred to as an e-mail, upon receiving the same in the e-mail inbox of a user, the method includes the following steps: a local application, working with the e-mail inbox and extracting a set of data contained in the incoming e-mail, sends the data set to a remote server, receives a response from the remote server, and attaches the response to the incoming e-mail; and the remote server receives the data set sent by the local application, analyzes the data so as to identify specific elements, and sends the specific elements as a reply to the local application. The invention relates to the exchange of structured information by e-mail, and in particular to scheduling appointments, contact details, and monitoring tasks to be performed.Type: GrantFiled: October 16, 2009Date of Patent: July 8, 2014Inventor: Philippe Laval
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Publication number: 20130241629Abstract: An actuator for controlling the operation of an apparatus comprises a panel (16) and an acoustic sensor (26). The panel provides a partition within a building structure, while the acoustic sensor is adapted to detect acoustic waves propagating through the panel. When a user exerts pressure against the panel, the sensor detects the acoustic waves that are formed and emits signals for controlling the operation of an apparatus, such as a doorbell, a light source, a television, a sound system, a ventilation system, a window blind, a radio or an alarm.Type: ApplicationFiled: November 22, 2011Publication date: September 19, 2013Applicant: SAINT-GOBAIN PLACO SASInventors: Marie-Virginie Ehrensperger, Paul-Henri Guering, Philippe Laval, Richard Morlat, Jean-Louis Mongrolle, Yves Benkemoun, Christelle Pousse
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Patent number: 8420397Abstract: Fluid flow devices include a small plate (2), at least one flow channel (20) formed into this small plate, at least one storage channel (221-226) extending from this connection channel, and a set of valves (V1-V6), each of which is suitable for allowing or stopping the flow of fluid in a corresponding storage channel.Type: GrantFiled: October 12, 2007Date of Patent: April 16, 2013Assignees: Rhodia Operations, Centre National de la Recherche Scientifique (C.N.R.S.)Inventors: Mathieu Joanicot, Philippe Laval, Jean-Baptiste Salmon
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Patent number: 8053242Abstract: The crystallization of chemical species/polymorphs comprises forming droplets of a solution of a substance with optionally different concentrations of said substance in an inert phase; producing and storing the droplets in at least one storage microchannel (1); forming crystals in all droplets; increasing the temperature in order to induce the dissolution of at least a portion of the crystals in at least some droplets; and analyzing the crystallization and dissolution process.Type: GrantFiled: September 3, 2009Date of Patent: November 8, 2011Assignee: Rhodia OperationsInventors: Mathieu Joanicot, Philippe Laval, Jacques Leng, Jean-Baptiste Salmon
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Publication number: 20110202621Abstract: A method for enhancing an electronic message, referred to as an e-mail, upon receiving the same in the e-mail inbox of a user, the method includes the following steps: a local application, working with the e-mail inbox and extracting a set of data contained in the incoming e-mail, sends the data set to a remote server, receives a response from the remote server, and attaches the response to the incoming e-mail; and the remote server receives the data set sent by the local application, analyses the data so as to identify specific elements, and sends the specific elements as a reply to the local application. The invention relates to the exchange of structured information by e-mail, and in particular to scheduling appointments, contact details, and monitoring tasks to be performed.Type: ApplicationFiled: October 16, 2009Publication date: August 18, 2011Inventor: Philippe Laval
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Publication number: 20110032513Abstract: Fluid flow devices include a small plate (2), at least one flow channel (20) formed into this small plate, at least one storage channel (221-226) extending from this connection channel, and a set of valves (V1-V6), each of which is suitable for allowing or stopping the flow of fluid in a corresponding storage channel.Type: ApplicationFiled: October 12, 2007Publication date: February 10, 2011Inventors: Mathieu Joanicot, Philippe Laval, Jean-Baptiste Salmon
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Publication number: 20100058845Abstract: The crystallization of chemical species/polymorphs comprises forming droplets of a solution of a substance with optionally different concentrations of said substance in an inert phase; producing and storing the droplets in at least one storage microchannel (1); forming crystals in all droplets; increasing the temperature in order to induce the dissolution of at least a portion of the crystals in at least some droplets; and analyzing the crystallization and dissolution process.Type: ApplicationFiled: September 3, 2009Publication date: March 11, 2010Applicants: RHODIA OPERATIONS, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (C.N.R.S.)Inventors: Mathieu Joanicot, Philippe Laval, Jacques Leng, Jean-Baptiste Salmon
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Publication number: 20080171070Abstract: The invention relates to polyelectrolyte multilayer films presenting a tunable biological activity and methods for preparing the same. The invention further relates to surfaces presenting such films and uses thereof, such as for the controlled delivery of biologically active agents.Type: ApplicationFiled: January 31, 2006Publication date: July 17, 2008Inventors: Pierre Schaaf, Nadia Jessel, Joelle Ogier-Dirrig, Philippe Lavalle, Jean-Claude Voegel, Bernard Senger
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Patent number: 7237596Abstract: The present invention concerns an element for the casting of a liquid metal, comprising a base body made from a refractory material, said body comprising an outer surface and an inner surface defining a pouring channel for the casting of the liquid metal. This element is characterized in that at least a part of the element inner surface is coated with an insulating coating forming, at the metal liquid contact, a gas impermeable layer. Such an element has an excellent thermal shock resistance which permits its use without preheating. Then a layer reducing advantageously the gas permeability is formed.Type: GrantFiled: March 28, 2003Date of Patent: July 3, 2007Assignee: Vesuvius Crucible CompanyInventors: Eric Hanse, François Delvoye, Philippe Laval
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Publication number: 20050156365Abstract: The present invention concerns an element for the casting of a liquid metal, comprising a base body made from a refractory material, said body comprising an outer surface and an inner surface defining a pouring channel for the casting of the liquid metal. This element is characterized in that at least a part of the element inner surface is coated with an insulating coating forming, at the metal liquid contact, a gas impermeable layer. Such an element has an excellent thermal shock resistance which permits its use without preheating. Then a layer reducing advantageously the gas permeability is formed.Type: ApplicationFiled: March 28, 2003Publication date: July 21, 2005Inventors: Eric Hanse, Francois Delvoye, Philippe Laval
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Patent number: 6918085Abstract: In a multidimensional conceptual reference, a dictionary of words is created, each conceptual word of at least one portion of the text to be stored is compared to those of the dictionary to determine the position of this word in said reference, and the resultant (T1) of the positions of all the conceptual words of the text portion to be stored is determined in order to determine the position of a global conceptualization of the text portion in said reference and to store this position. The position in a multidimensional conceptual reference of a global conceptualization of the question is determined, and the position of the global conceptualization of the question is compared to the homologous positions of the stored texts, in order to select at least one of them, corresponding to a searched text.Type: GrantFiled: June 10, 1999Date of Patent: July 12, 2005Assignee: Cora SAInventors: Philippe Laval, Luc Manigot
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Patent number: 6713428Abstract: The present invention concerns a novel, highly dispersible aluminium hydrate. It also concerns a process for preparing said aluminium hydrate by precipitation of an aluminium hydrate in a reactor with no back-mixing and preparation of said aluminium hydrate in a reactor with back-mixing. Finally, it concerns the use of said hydrate for the preparation of catalysts or catalyst supports.Type: GrantFiled: May 9, 2001Date of Patent: March 30, 2004Assignee: Instuit Francais du PetroleInventors: Pierre-Yves Le Goff, Philippe Laval, Michel Martin
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Publication number: 20010037038Abstract: A process for the production of methionine which comprises (a) hydrolyzing the methionine amide in the presence of a catalyst comprising titanium to produce ammonium methioninate, said catalyst having a porosity of from 5 to 1000 nm, a total pore volume of from 0.2 to 0.55 cm3/g and a surface area of from 30 to 150 m2/g, and (b) a second step of recuperating methionine from the ammonium methioninate salt by removing ammonia. Also claimed is an industrial process for the production of methionine incorporating the aforementioned hydrolysis.Type: ApplicationFiled: February 13, 2001Publication date: November 1, 2001Inventors: Herve Ponceblanc, Jean-Christophe Rossi, Philippe Laval, Georges Gros