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.
Patent No.:
Date of Patent:
Aug. 03, 2021
Filed:
Jan. 21, 2019
Applicant:
Tianxin Wang, Walnut Creek, CA (US);
Inventor:
Tianxin Wang, Walnut Creek, CA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 33/68 (2006.01); H01J 49/16 (2006.01);
U.S. Cl.
CPC ...
G01N 33/6851 (2013.01); H01J 49/164 (2013.01); G01N 2560/00 (2013.01); Y10T 436/24 (2015.01);
Abstract
Methods and compounds are provided to improve the desorption and ionization of analyte for mass spectrometry analysis. More specifically, it is for electrospray ionization (ESI) mass spectrometry. The method uses charged affinity molecules that can bind with analyte either temporarily or permanently to improve the desorption and ionization of analyte. The charged affinity molecules can be positively charged or negatively charged.