Patents by Inventor Reinaldo Rodrigo Queiros de Almeida

Reinaldo Rodrigo Queiros de Almeida 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).

  • Liquid chromatography-mass spectrometry
    Patent number: 7797988
    Abstract: A liquid chromatography/mass spectrometry system includes a chromatographic column through which an effluent passes, wherein the effluent comprises a plurality of analytes that correspond to a plurality of chromatographic peaks and an eluent; a post-column splitter having at least two output ports through which the effluent of the column is split to at least a first portion and a second portion; a mass spectrometer configured to receive the first portion from a first of the output ports for analysis; and a tube connected to a second of the output ports configured to prevent substantial evaporation of the eluent in the second portion until undergoing mass spectrometry. The second portion has a plurality of separated analytes corresponding to at least two chromatographic peaks. A method of using the system is also disclosed.
    Type: Grant
    Filed: March 21, 2008
    Date of Patent: September 21, 2010
    Assignee: Advion BioSystems, Inc.
    Inventors: Gary A. Schultz, Reinaldo Rodrigo Queiros de Almeida, Mark Haydn Allen
  • LIQUID CHROMATOGRAPHY-MASS SPECTROMETRY
    Publication number: 20080314129
    Abstract: A liquid chromatography/mass spectrometry system includes a chromatographic column through which an effluent passes, wherein the effluent comprises a plurality of analytes that correspond to a plurality of chromatographic peaks and an eluent; a post-column splitter having at least two output ports through which the effluent of the column is split to at least a first portion and a second portion; a mass spectrometer configured to receive the first portion from a first of the output ports for analysis; and a tube connected to a second of the output ports configured to prevent substantial evaporation of the eluent in the second portion until undergoing mass spectrometry. The second portion has a plurality of separated analytes corresponding to at least two chromatographic peaks. A method of using the system is also disclosed.
    Type: Application
    Filed: March 21, 2008
    Publication date: December 25, 2008
    Applicant: Advion BioSciences, Inc.
    Inventors: Gary A. Schultz, Reinaldo Rodrigo Queiros De Almeida, Mark Haydn Allen