Patents by Inventor Elisabeth Ricchi

Elisabeth Ricchi 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).

  • Pharmaceutical tablet system that floats on gastric fluid for multipulse release of active substance, and respective processes of producing same and a cup-shaped envelope of same
    Patent number: 7838028
    Abstract: A tablet system for prolonged floating in or on gastric fluid for releasing therein pharmaceutically active substances in an alternate succession of substance release and no-release periods is made up of a multilayered core placed in a cup-shaped envelope. The core is made up of release layers and no-release layers devoid of pharmaceutically active substance, superposed in alternate succession. The cup-shaped envelope covers bottom and side surfaces of the core while leaving exposed an upper surface of the core. The cup-shaped envelope provides for buoyancy by being formed of a compression-sintered mixture comprising hydrophobic material and inert powdered filler. The hydrophobic material is composed of fatty and/or waxy material capable of being sintered by compression and whose bulk density is lower than gastric fluid density. The powdered filler has a loose powder density that is lower than gastric fluid density.
    Type: Grant
    Filed: March 18, 2002
    Date of Patent: November 23, 2010
    Assignee: Jagotec AG
    Inventors: Pascal Grenier, Elisabeth Ricchi, Jacques Quinton, Guy Vergnault
  • Pharmaceutical tablet system that floats on gastric fluid for multipulse release of active substance and respective processes of producing same and a cup-shaped envelope of same
    Publication number: 20040166161
    Abstract: A tablet system for prolonged floating in or on gastric fluid for releasing therein pharmaceutically active substances in an alternate succession of substance release and no-release periods is made up of a multilayered core placed in a cup-shaped envelope. The core is made up of release layers and no-release layers devoid of pharmaceutically active substance, superposed in alternate succession. The cup-shaped envelope covers bottom and side surfaces of the core while leaving exposed an upper surface of the core. The cup-shaped envelope provides for buoyancy by being formed of a compression-sintered mixture comprising hydrophobic material and inert powdered filler. The hydrophobic material is composed of fatty and/or waxy material capable of being sintered by compression and whose bulk density is lower than gastric fluid density. The powdered filler has a loose powder density that is lower than gastric fluid density.
    Type: Application
    Filed: March 30, 2004
    Publication date: August 26, 2004
    Inventors: Pascal Grenier, Elisabeth Ricchi, Jacques Quinton, Guy Vergnault