The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 10, 2022

Filed:

Mar. 05, 2017
Applicant:

Leco Corporation, St. Joseph, MI (US);

Inventors:

Jonathan David Byer, St. Joseph, MI (US);

Kevin Matthew Siek, St. Joseph, MI (US);

Assignee:

LECO Corporation, St. Joseph, MI (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 49/00 (2006.01); G16C 20/20 (2019.01); G01N 30/72 (2006.01);
U.S. Cl.
CPC ...
H01J 49/0036 (2013.01); G01N 30/7206 (2013.01); G16C 20/20 (2019.02);
Abstract

A method of determining mass defect plots with user-defined mass scaling, filtering, and labeling in a mass spectrometer is described. An implementation of the method comprises, (i) generating a mass defect plot from the data, (ii) filtering all ions in the mass defect plot that do not have an associated isotopologue ion, (iii) selecting an unidentified ion, (iv) determining an isotope pattern of the unidentified ion, (v) identifying one or more elements indicated by the isotope pattern for the unidentified ion; (vi) searching formulas containing one or more elements indicated by the isotope pattern for the unidentified ion, (vii) determining a chemical formula of the identified ion, and (viii) displaying the chemical formulas for the unidentified ion on a screen.


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