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:
Sep. 28, 2021

Filed:

Oct. 29, 2019
Applicant:

Bio-rad Laboratories, Inc., Hercules, CA (US);

Inventors:

Kevin D. Ness, Pleasanton, CA (US);

Donald A. Masquelier, Tracy, CA (US);

Billy W. Colston, Jr., San Ramon, CA (US);

Benjamin J. Hindson, Livermore, CA (US);

Assignee:

Bio-Rad Laboratories, Inc., Hercules, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01L 3/00 (2006.01); B01F 3/08 (2006.01); C12Q 1/686 (2018.01); B01F 5/00 (2006.01); G01N 35/08 (2006.01); B01F 5/02 (2006.01); B01F 13/00 (2006.01); B01F 13/10 (2006.01); B01L 9/00 (2006.01);
U.S. Cl.
CPC ...
B01L 3/50273 (2013.01); B01F 3/0807 (2013.01); B01F 13/0062 (2013.01); B01F 13/1022 (2013.01); B01L 3/502 (2013.01); B01L 3/502784 (2013.01); B01L 3/52 (2013.01); B01L 9/527 (2013.01); C12Q 1/686 (2013.01); B01F 5/0085 (2013.01); B01F 5/0256 (2013.01); B01F 13/0071 (2013.01); B01L 3/502761 (2013.01); B01L 2200/025 (2013.01); B01L 2200/0636 (2013.01); B01L 2200/0647 (2013.01); B01L 2200/0673 (2013.01); B01L 2200/14 (2013.01); B01L 2200/16 (2013.01); B01L 2300/0609 (2013.01); B01L 2300/0681 (2013.01); B01L 2300/0816 (2013.01); B01L 2300/0829 (2013.01); B01L 2300/0861 (2013.01); B01L 2400/049 (2013.01); G01N 35/08 (2013.01);
Abstract

Method of detecting a target nucleic acid. In an exemplary method, at least two thermal zones of different temperature may be created using a heating assembly. A first emulsion and a second emulsion may be formed. The first and second emulsions may be thermally cycled by passing them through tubing in a spaced relation to one another, with the tubing being wound around a central axis of the heating assembly and extending through each thermal zone multiple times. Thermally cycling may promote amplification of the target nucleic acid in droplets of each emulsion. Droplets of each emulsion may be passed through a detection channel located downstream of the tubing. Fluorescence may be detected from the droplets being passed through the detection channel.


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