Patents by Inventor Zulfikar Ahmed

Zulfikar Ahmed 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 apparatus for modeling mass spectrometer lineshapes
    Patent number: 7072772
    Abstract: Methods and apparatuses are disclosed that model the lineshapes of mass spectrometry data. Ions can be modeled with an initial distribution that models molecules as having multiple positions and/or energies prior to traveling in the mass spectrometer. These initial distributions can be pushed forward by time of flight functions. Fitting can be performed between the modeled lineshapes and empirical data. Filtering can greatly reduce dimensions of the empirical data, remove noise, compress the data, recover lost and/or damaged data.
    Type: Grant
    Filed: June 12, 2003
    Date of Patent: July 4, 2006
    Assignee: Predicant BioScience, Inc.
    Inventors: Zulfikar Ahmed, Hans Bitter
  • Methods for accurate component intensity extraction from separations-mass spectrometry data
    Publication number: 20050255606
    Abstract: The present invention discloses methods for deconvolving and converting 1D mass spectra to 2D mass spectrum in order to obtain migration time centers and total intensities of the neutral mass envelopes of 2D spectra. The present invention also discloses devices that include a preparation/separation unit coupled to a mass spectrometer unit, and a computer unit capable of deconvolving mass spectra and calculating neutral mass envelopes.
    Type: Application
    Filed: May 13, 2004
    Publication date: November 17, 2005
    Applicant: Biospect, Inc., a California Corporation
    Inventors: Zulfikar Ahmed, Hans Bitter, Michael Brown, Jonathan Heller, David Donoho, Jim Quarato, Arjuna Balasingham, David De Valpine
  • Method and apparatus for modeling mass spectrometer lineshapes
    Publication number: 20040254741
    Abstract: Methods and apparatuses are disclosed that model the lineshapes of mass spectrometry data. Ions can be modeled with an initial distribution that models molecules as having multiple positions and/or energies prior to traveling in the mass spectrometer. These initial distributions can be pushed forward by time of flight functions. Fitting can be performed between the modeled lineshapes and empirical data. Filtering can greatly reduce dimensions of the empirical data, remove noise, compress the data, recover lost and/or damaged data.
    Type: Application
    Filed: June 12, 2003
    Publication date: December 16, 2004
    Applicant: Biospect, Inc.
    Inventors: Hans Bitter, Zulfikar Ahmed