Patents by Inventor Francois Perrin

Francois Perrin 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).

  • Method and device of brain's cartography implemented by interpolation
    Patent number: 4957116
    Abstract: This invention relates to a method of interpolation of an electric value U t any point of a sphere, based on a finished number n of measures made at determined and known sites P.sub.i.This invention is also concerned with a device comprising processing circuits for the signals picked up at known acquisition sites, a central computer fitted with memorization and visualization means.Applications: topography of present potentials, neurology.
    Type: Grant
    Filed: January 19, 1989
    Date of Patent: September 18, 1990
    Assignee: Institut National de la Sante et de la Recherche Medicale, I.N.S.E.R.M.
    Inventors: Jacques Pernier, Francois Perrin
  • Device for treating respiratory deficiency of a patient
    Patent number: 4567888
    Abstract: A duct opening close to the patient's respiratory passages provides a supply of additional oxygen from a source.The device comprises a heat sensor element exposed to the temperature changes between the air inhaled and the air exhaled which cause corresponding voltage changes across its terminals; a coupler supplying signals which are a function of these voltage changes; an electromagnetic valve in the duct and controlled by a control element during the patient's various stages of respiration.The invention is applicable more particularly to oxygen therapy devices worn on the person e.g. in the fashion of spectacles.
    Type: Grant
    Filed: June 24, 1983
    Date of Patent: February 4, 1986
    Assignee: Compagnie Francaise de Produits Oxygenes
    Inventors: Dominique Robert, Francois Perrin, Gilles Bally