Patents by Inventor Bernard Pech

Bernard Pech 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).

  • Needleless syringe functioning by compression of the reservoir containing the liquid active principle
    Patent number: 7559917
    Abstract: The invention concerns the field of pre-filled and disposable needleless syringes, operating with a gas generator and used for intradermal, subcutaneous and intramuscular injections of a liquid active principle for therapeutic purposes in human and veterinary medicine. Said injection device (1) is mainly characterized in that it has a free pressuring space (26) around the reservoir (20) of the active principle (17) so that the gases produced by the gas generator (4) instantly penetrate said pressurizing space (26), compressing said reservoir (20) just before causing the plunger to move (18) to expel the liquid active principle (17). During said displacement, the reservoir (20) is subjected to a state of equal pressure.
    Type: Grant
    Filed: July 27, 2001
    Date of Patent: July 14, 2009
    Assignee: Crossject
    Inventors: Patrick Alexandre, Bernard Brouquieres, Bernard Pech