Patents Assigned to John B. Fenn
  • Composition of matter of a population of multiply charged ions derived from polyatomic parent molecular species
    Patent number: 5686726
    Abstract: This invention describes the production of mass spectra which contain a multiplicity of peaks. The component ions of these peaks, which are multiply charged, are formed by dispersing a solution containing an analyte into a bath gas as highly charged droplets. The analyte is generally a compound of high molecular weight and is of biochemical interest. The invention also describes methods for calculating the molecular weight of the analyte from the measured mass values of the highly charged ions.
    Type: Grant
    Filed: July 10, 1992
    Date of Patent: November 11, 1997
    Assignee: John B. Fenn
    Inventors: John Bennett Fenn, Chin-Kai Meng, Matthias Mann
  • Method of producing multiply charged ions and for determining molecular weights of molecules by use of the multiply charged ions of molecules
    Patent number: 5130538
    Abstract: This invention describes the production of mass spectra which contain a multiplicty of peaks. The component ions of these peaks, which are multiply charged, are formed by dispersing a solution containing an analyte into a bath gas as highly charged droplets. The analyte is generally a compound of high molecular weight and is of biochemical interest. The invention also describes methods for calculating the molecular weight of the analyte from the measured mass values of the highly charged ions.
    Type: Grant
    Filed: October 10, 1991
    Date of Patent: July 14, 1992
    Assignee: John B. Fenn
    Inventors: John B. Fenn, Matthias Mann, Chin-Kai Meng