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:
Mar. 07, 2023

Filed:

Sep. 22, 2020
Applicant:

Thermo Finnigan Llc, San Jose, CA (US);

Inventors:

Pablo Nieto Ramos, Campbell, CA (US);

Mikhail V. Ugarov, San Jose, CA (US);

Assignee:

Thermo Finnigan LLC, San Jose, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J 49/00 (2006.01); H01J 49/06 (2006.01); G01N 27/622 (2021.01); H01J 49/42 (2006.01);
U.S. Cl.
CPC ...
H01J 49/063 (2013.01); G01N 27/622 (2013.01); H01J 49/0031 (2013.01); H01J 49/066 (2013.01); H01J 49/4225 (2013.01);
Abstract

A mass spectrometry method comprises: receiving a stream of ions at an inlet end of an ion transport device; accumulating a first portion of the ion stream at a first electrical potential well at a first position within the ion transport device between the inlet and outlet ends; creating a generally descending potential profile within the ion transport apparatus between a second position and the outlet end and, simultaneously, creating a second potential well at a third position within the ion transport apparatus, the second position disposed between the first position and the inlet end, the third position disposed between the second position and the inlet end; and transporting the accumulated first portion of the ion stream from the first position to the outlet end under the impetus of the generally descending potential profile and, simultaneously, accumulating a second portion of the ion stream at the second potential well.


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