Patents by Inventor Olivier Peraldi

Olivier Peraldi 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).

  • Metastable atom bombardment source
    Patent number: 6661178
    Abstract: The metastable atom bombardment source provides a charged particle free beam of metastable species that can be used to bombard and ionize organic and inorganic substances in a gas phase. The metastable atoms are produced by inducing a discharge in a gas (rare gases or small molecules). The discharge is curved between the cathode and anode, with the cathode located in a medium pressure zone and the anode located off-axis in a low pressure zone. A nozzle located between the cathode and the anode provides a collimated beam of metastable atoms of low kinetic energy that is directed at an ion volume containing the substances to be analyzed. By selecting the energy of the metastable state, selective fragmentation of molecules, particularly large molecular weight molecules, can be carried out.
    Type: Grant
    Filed: November 28, 2000
    Date of Patent: December 9, 2003
    Assignee: Universite de Montreal
    Inventors: Michel J. Bertrand, Olivier Peraldi
  • Time-of-flight bacteria analyser using metastable source ionization
    Patent number: 6627881
    Abstract: For analyzing micro-organisms and other high-molecular weight species, a sample of the substance to be analyzed is prepared, placed in a pyrolyzer where it is pyrolyzed with a selected temperature program to provide pyrolyzed product of a high-dalton mass range. The product is ionized using metastable atoms which results in efficient ionization with little fragmentation. The metastable atoms are generated using a generator that provides a beam of metastable atoms which is basically free from ions. The ionized product is then analyzed using a high acquisition rate mass analyzer, such as a time-of-flight (TOF) analyzer.
    Type: Grant
    Filed: November 28, 2000
    Date of Patent: September 30, 2003
    Assignees: Dephy Technolgies Inc., Université de Montréal
    Inventors: Michel J. Bertrand, Olivier Peraldi
  • Metastable atom bombardment source
    Patent number: 6124675
    Abstract: The metastable atom bombardment source provides a charged particle free beam of metastable species that can be used to bombard and ionize organic and inorganic substances in a gas phase. The metastable atoms are produced by inducing a discharge in a gas (rare gases or small molecules). The discharge is curved between the cathode and anode, with the cathode located in a medium pressure zone and the anode located off-axis in a low pressure zone; A nozzle located between the cathode and the anode provides a collimated beam of metastable atoms of low kinetic energy that is directed at an ion volume containing the substances to be analyzed.
    Type: Grant
    Filed: June 1, 1998
    Date of Patent: September 26, 2000
    Assignee: University of Montreal
    Inventors: Michel J. Bertrand, Denis Faubert, Olivier Peraldi, Andre L'Heureux