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:
Nov. 10, 2026

Filed:

Jan. 07, 2021
Applicant:

Regeneron Pharmaceuticals, Inc., Tarrytown, NY (US);

Inventors:

Yuan Mao, Hartsdale, NY (US);

Andrew Kleinberg, Roslyn Heights, NY (US);

Yunlong Zhao, Scarsdale, NY (US);

Lili Guo, White Plains, NY (US);

Assignee:

Regeneron Pharmaceuticals, Inc., Tarrytown, NY (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 33/68 (2006.01); G01N 30/34 (2006.01); G01N 30/72 (2006.01);
U.S. Cl.
CPC ...
G01N 33/6848 (2013.01); G01N 30/34 (2013.01); G01N 30/7233 (2013.01); G01N 33/6857 (2013.01);
Abstract

A method of enhancing a mass spectral signal is disclosed. The method can include contacting a sample to a separation column under conditions that permit sample components to bind to the substrate; applying a first mobile gradient to the separation column, wherein the first mobile phase gradient comprises trifluoroacetic acid (TFA) and a small molecule additive (e.g., an amino acid) or formic acid (FA) and a small molecule additive (e.g., an amino acid); applying a second mobile gradient to the separation column, wherein the second mobile phase gradient comprises TFA in acetonitrile (ACN) and a small molecule additive (e.g., an amino acid) or formic acid (FA) in ACN and a small molecule additive (e.g., an amino acid); and performing mass spectrometric analysis on eluted sample components.


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Mao, Yuan. (2026). Use of amino acids to enhance signal in mass spectral analyses (U.S. Patent No. 12791563). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12791563

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