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:
Dec. 16, 2025

Filed:

Oct. 21, 2021
Applicant:

Waters Technologies Ireland Ltd, Dublin, IE;

Inventors:

Maria Gaffney-Lovett, Dublin, IE;

Richard Denny, Dublin, IE;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J 49/00 (2006.01); H01J 49/42 (2006.01);
U.S. Cl.
CPC ...
H01J 49/0009 (2013.01); H01J 49/0036 (2013.01); H01J 49/42 (2013.01);
Abstract

We provide a method of assessing an acquired mass spectrum, the method including the steps of: obtaining a model isotope pattern for a chemical compound of known elemental composition, providing mass spectrum data obtained from a mass spectrometer in analysis of the chemical compound, and performing location matching by comparing the mass spectrum data to the isotope pattern to match a reference location in the isotope pattern with respective corresponding candidate locations in the mass spectrum data, the location matching including: determining a likelihood function over the mass spectrum data, representing the likelihood that each location in the mass spectrum data correctly corresponds to the reference location of the isotope pattern, determining a set of candidate locations each corresponding to a local maxima in the determined likelihood function, and at each candidate location, determining an associated error bar based on the curvature of the likelihood function at that location.


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