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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.:

US 9500621 B1

PDFFull Text
Date of Patent:
Nov. 22, 2016

Filed:

Jun. 03, 2013

Leakage current sense circuit for error detection in an improved capillary electrophoresis-electrospray ionization-mass spectrometry system

Applicant:

Beckman Coulter, Inc., Brea, CA (US);

Inventors:

Peter S. Kotowski, Yorba Linda, CA (US);

Sunil S. Deliwala, Placentia, CA (US);

Stephen A. Frye, Chino, CA (US);

Assignee:

Beckman Coulter, Inc., Brea, CA (US);

Attorney:

Kilpatrick Townsend & Stockton LLP

Primary Examiner:

Thienvu Tran

Assistant Examiner:

Kevin J Comber

Int. Cl.
CPC ...
G01N 27/447 (2006.01); G01R 31/02 (2006.01); H01J 49/02 (2006.01); H01J 49/16 (2006.01);
U.S. Cl.
CPC ...
G01N 27/44704 (2013.01); G01N 27/44713 (2013.01); H01J 49/022 (2013.01); H01J 49/165 (2013.01); G01R 31/025 (2013.01);
Abstract

Aspects of the present innovations relate to improved systems that may perform capillary electrophoresis (CE) and CE in conjunction with electrospray ionization (ESI) as an input to a mass spectrometry system (MS). Embodiments may use a current sense circuit at a high voltage output from an MS-ESI power supply in conjunction with additional elements to identify fault conditions associated with leakage current, to confirm the continuity of CE connections, and to provide improved system protection.

Find Patent Forward Citations

Kotowski, Peter. (2016). Leakage current sense circuit for error detection in an improved capillary electrophoresis-electrospray ionization-mass spectrometry system (U.S. Patent No. 9500621). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9500621

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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