Patents by Inventor Gerard Leduc
Gerard Leduc 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: 6770298Abstract: The invention concerns a device for producing granules, in particular pharmaceutical granules, comprising a drum (4) with peripheral apertures (25) and a member (30) feeding the drum with coating or fixing substance. The drum (4) comprises mutually parallel sections (22) defining between them the apertures (25).Type: GrantFiled: August 9, 2000Date of Patent: August 3, 2004Assignee: Laboratoires des Produits Ethiques EthypharmInventors: Patrice Debregeas, Gérard Leduc, Pascal Oury, Patrice Romain
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Publication number: 20040081691Abstract: The present invention relates to granules containing at least one plant substance, characterized in that they each comprise a neutral core having a particle size of between 200 and 1600 &mgr;m coated with a layer containing the plant substance combined with a pharmaceutically acceptable excipient. These granules may be obtained from a plant extract in the form of a dry, fluid or soft extract, by powder-coating or by coating in solution.Type: ApplicationFiled: October 20, 2003Publication date: April 29, 2004Applicant: D B FInventors: Patrice Debregeas, Gerard Leduc, Domingo Bernabe
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Patent number: 6660296Abstract: Novel forms of sustained-release microgranules (LP) containing diltiazem are disclosed. The microgranules consist of a neutral granular carrier coated with an active layer including diltiazem or a pharmaceutically acceptable salt thereof as the active principle, a surfactant and a binder, and an outer layer providing sustained release of the active principle (layer LP).Type: GrantFiled: December 3, 2001Date of Patent: December 9, 2003Assignee: Laboratories des Produits Ethiques EthypharimInventors: Patrice Debregeas, Gérard Leduc, Pascal Oury, Pascal Suplie
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Publication number: 20030129244Abstract: The present invention relates to a novel oral immediate-release morphine sulfate formulation in the form of microgranules.Type: ApplicationFiled: September 30, 2002Publication date: July 10, 2003Applicant: Laboratoires Des Produits Ethiques EthypharmInventors: Patrice Debregeas, Gerard Leduc, Pascal Oury, Pascal Suplie
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Patent number: 6551621Abstract: The invention concerns omeprazole microgranules each comprising an active layer containing the active principle, and an outer gastroprotecting layer containing a gastroprotecting agent, characterized in that the omeprazole is combined with at least a hydrophobic substance.Type: GrantFiled: October 13, 2000Date of Patent: April 22, 2003Assignee: EthypharmInventors: Patrice Debregeas, Gérard Leduc, Pascal Oury, Pascal Suplie
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Publication number: 20030017210Abstract: The invention concerns an oral formulation of cisplatin, in the form of controlled-release microgranules, and its method of formulation by grossing in an aqueous medium. The invention also concerns a pharmaceutical preparation containing controlled-release cisplatin microgranules, optionally combined with an anticancer agent, to be used in anticancer therapy. The invention further provides a use for these microgranules for making orally administered medicaments for polychemotherapy or in combination with radiotherapy.Type: ApplicationFiled: July 25, 2002Publication date: January 23, 2003Applicant: LABORATOIRES DES PRODUITS ETHIQUES ETHYPHARMInventors: Patrice Debregeas, Gerard Leduc, Pascal Oury, Pascal Suplie
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Publication number: 20020182253Abstract: Novel forms of sustained-release microgranules (LP) containing diltiazem are disclosed. The microgranules consist of a neutral granular carrier coated with an active layer including diltiazem or a pharmaceutically acceptable salt thereof as the active principle, a surfactant and a binder, and an outer layer providing sustained release of the active principle (layer LP).Type: ApplicationFiled: December 3, 2001Publication date: December 5, 2002Applicant: LABORATOIRES DES PRODUITS ETHIQUES ETHYPHARMInventors: Patrice Debregeas, Gerard Leduc, Pascal Oury, Pascal Suplie
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Patent number: 6482437Abstract: The present invention relates to a novel oral immediate-release morphine sulfate formulation in the form of microgranules. Each microgranule comprises a neutral support grain coated with a mixture of morphine sulfate and of a binder, such as hydroxypropylmethylcellulose, which represents 10 to 50% by weight of the morphine sulfate/binder mixture. The present invention also relates to a process for the preparation of these microgranules which is carried out entirely in aqueous medium on neutral support grains. The present invention finally relates to the pharmaceutical preparations comprising the microgranules according to the invention.Type: GrantFiled: February 16, 1999Date of Patent: November 19, 2002Assignee: Laboratoires des Produits Ethiques EthypharmInventors: Patrice Debregeas, Gérard Leduc, Pascal Oury, Pascal Suplie
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Patent number: 6458389Abstract: The invention concerns an oral formulation of cisplatin, in the form of controlled-release microgranules, and its method of formulation by grossing in an aqueous medium. The invention also concerns a pharmaceutical preparation containing controlled-release cisplatin microgranules, optionally combined with an anticancer agent, to be used in anticancer therapy. The invention further provides a use for these microgranules for making orally administered medicaments for polychemotherapy or in combination with radiotherapy.Type: GrantFiled: September 8, 1999Date of Patent: October 1, 2002Assignee: Laboratoires Des Produits Ethiques EthypharmInventors: Patrice Debregeas, Gérard Leduc, Pascal Oury, Pascal Suplie
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Patent number: 6383516Abstract: Novel forms of sustained-release microgranules (LP) containing diltiazem are disclosed. The microgranules consist of a neutral granular carrier coated with an active layer including diltiazem or a pharmaceutically acceptable salt thereof as the active principle, a surfactant and a binder, and an outer layer providing sustained release of the active principle (layer LP).Type: GrantFiled: January 11, 2001Date of Patent: May 7, 2002Assignee: Laboratoires des Produits Ethiques EthypharmInventors: Patrice Debregeas, Gérard Leduc, Pascal Oury, Pascal Suplie
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Publication number: 20020028246Abstract: The present invention relates to a novel oral immediate-release morphine sulfate formulation in the form of microgranules.Type: ApplicationFiled: February 16, 1999Publication date: March 7, 2002Inventors: PATRICE DEBREGEAS, GERARD LEDUC, PASCAL OURY, PASCAL SUPLIE
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Patent number: 6228395Abstract: Novel forms of sustained-release microgranules (LP) containing diltiazem are disclosed. The microgranules consist of a neutral granular carrier coated with an active layer including diltiazem or a pharmaceutically acceptable salt thereof as the active principle, a surfactant and a binder, and an outer layer providing sustained release of the active principle (layer LP).Type: GrantFiled: November 25, 1998Date of Patent: May 8, 2001Assignee: Laboratories des Produits Ethiques EthypharmInventors: Patrice DeBregeas, Gérard LeDuc, Pascal Oury, Pascal Suplie
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Patent number: 6139877Abstract: The present invention relates to a novel pharmaceutical form, in the form of spheroids, containing tiagabine as active principle. The invention also covers the process for the preparation of such spheroids and multiparticulate pharmaceutical preparations, such as tablets, containing these spheroids. These pharmaceutical preparations are intended for the delivery of the spheroids they contain, and are characterized by the absence of an adverse effect on the release profile of the tiagabine contained in the spheroids following a possible compression step.Type: GrantFiled: November 23, 1998Date of Patent: October 31, 2000Assignee: Laboratoires des Produits Ethiques EthypharmInventors: Patrice Debregeas, Gerard Leduc, Pascal Oury, Pascal Suplie
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Patent number: 6077544Abstract: The present invention relates to a novel pharmaceutical form, in the form of spheroids, containing one or more active principles, which the exception of tiagabine.The invention also covers the process for the preparation of such spheroids and multiparticulate pharmaceutical preparations, such as tablets, containing these spheroids.These pharmaceutical preparations are intended for the delivery of the spheroids they contain, and are characterized by the absence of an adverse effect on the release profile of the active principle(s) following a possible compression step.Type: GrantFiled: November 23, 1998Date of Patent: June 20, 2000Assignee: Laboratoires des Products Ethiques EthypharmInventors: Patrice Debregeas, Gerard Leduc, Pascal Oury, Pascal Suplie
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Patent number: 5549911Abstract: The present invention relates to a galenic form of 5-nitroimidazole derivatives which is characterized in that it comprises a combination of microgranules of 5-nitroimidazole derivatives consisting, on the one hand, of gastroresistant microgranules and, on the other hand, of prolonged-release microgranules, the pharmaceutical compositions comprising them and the microgranules as intermediates in the preparation of the form according to the invention.Type: GrantFiled: January 11, 1995Date of Patent: August 27, 1996Assignee: Laboratoires Des Produits Ethiques EthypharmInventors: Gerard Leduc, Patrice Debregeas
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Patent number: 5385739Abstract: The present invention relates to a stable formulation of omeprazole microgranules containing a neutral core consisting of sugar and starch, characterized in that it contains an active layer consisting of a dilution of omeprazole in mannitol in substantially equal amounts. It also relates to a process for producing such formulations.Type: GrantFiled: June 16, 1993Date of Patent: January 31, 1995Assignee: EthypharmInventors: Patrice Debregeas, Gerard Leduc
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Patent number: 4960596Abstract: The slow release preparation obtained by the method of the invention reduces the number of times the medicine needs to be taken per day, and also provides lower peaks of concentration in the blood after the medicine has been taken while simultaneously ensuring that the lowest concentration in the blood remains higher over a period of time.Type: GrantFiled: November 23, 1988Date of Patent: October 2, 1990Assignee: EthypharmInventors: Patrice Debregeas, Gerard Leduc, Jean-Francois Boyer
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Patent number: 3981630Abstract: A swash plate pump of the type wherein a plurality of pistons bear against the swash plate and are given a reciprocating movement when the plate is rotated by a drive shaft. The drive shaft comprises a solid portion and a hollow portion which latter constitutes a central admission conduit for the liquid to be pumped. The swash plate is mounted at the junction between the solid and hollow portions of the shaft, and the plate has an aperture which communicates with the central conduit and a crescent-shaped port for liquid distribution to the pistons. These pistons are arranged in a circle concentric with the solid shaft portion. A taper roller bearing is mounted on the hollow shaft portion and the front face of the swash plate bears against the roller bearing. The discharge flow of liquid can be divided for distribution into several separate flows by a cylindrical sleeve located on the solid shaft portion.Type: GrantFiled: May 27, 1975Date of Patent: September 21, 1976Inventors: Gerard Leduc, Michel Leduc
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Patent number: RE35903Abstract: The slow release preparation obtained by the method of the invention reduces the number of times the medicine needs to be taken per day, and also provides lower peaks of concentration in the blood after the medicine has been taken while simultaneously ensuring that the lowest concentration in the blood remains higher over a period of time.Type: GrantFiled: June 23, 1992Date of Patent: September 22, 1998Assignee: EthypharmInventors: Patrice Debregeas, Gerard Leduc, Jean-Francois Boyer