Patents by Inventor Norm Madden

Norm Madden 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).

  • Real-time detection method and system for identifying individual aerosol particles
    Patent number: 7260483
    Abstract: An improved method and system of identifying individual aerosol particles in real time. Sample aerosol particles are collimated, tracked, and screened to determine which ones qualify for mass spectrometric analysis based on predetermined qualification or selection criteria. Screening techniques include one or more of determining particle size, shape, symmetry, and fluorescence. Only qualifying particles passing all screening criteria are subject to desorption/ionization and single particle mass spectrometry to produce corresponding test spectra, which is used to determine the identities of each of the qualifying aerosol particles by comparing the test spectra against predetermined spectra for known particle types. In this manner, activation cycling of a particle ablation laser of a single particle mass spectrometer is reduced.
    Type: Grant
    Filed: August 11, 2004
    Date of Patent: August 21, 2007
    Assignee: The Regents of the University of California
    Inventors: Eric E. Gard, Keith R. Coffee, Matthias Frank, Herbert J. Tobias, David P. Fergenson, Norm Madden, Vincent J. Riot, Paul T. Steele, Bruce W. Woods
  • Real-time detection method and system for identifying individual aerosol particles
    Publication number: 20050073683
    Abstract: An improved method and system of identifying individual aerosol particles in real time. Sample aerosol particles are collimated, tracked, and screened to determine which ones qualify for mass spectrometric analysis based on predetermined qualification or selection criteria. Screening techniques include one or more of determining particle size, shape, symmetry, and fluorescence. Only qualifying particles passing all screening criteria are subject to desorption/ionization and single particle mass spectrometry to produce corresponding test spectra, which is used to determine the identities of each of the qualifying aerosol particles by comparing the test spectra against predetermined spectra for known particle types. In this manner, activation cycling of a particle ablation laser of a single particle mass spectrometer is reduced.
    Type: Application
    Filed: August 11, 2004
    Publication date: April 7, 2005
    Inventors: Eric Gard, Keith Coffee, Matthias Frank, Herbert Tobias, David Fergenson, Norm Madden, Vincent Riot, Paul Steele, Bruce Woods