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:
Sep. 19, 2017
Filed:
Oct. 02, 2014
Bio-rad Laboratories, Inc., Hercules, CA (US);
Tom R. Berkelman, Oakland, CA (US);
Adriana Jeanne Harbers, Martinez, CA (US);
Jovencio Hilario, Hercules, CA (US);
Michael Keith Urban, El Cerrito, CA (US);
Bio-Rad Laboratories, Inc., Hercules, CA (US);
Abstract
Methods, articles of manufacture, and kits for calibrating fluid delivery systems are provided. A fluid delivery system connected to N input streams, where N is an integer greater than or equal to 2, mixes together fluid from the N input streams to form an output stream. The methods involve obtaining N test solutions, each containing a dye, providing optical absorbances of the test solutions at appropriate wavelengths, injecting the test solutions into the input streams, mixing the test solutions, and measuring the absorbance of the output stream at the same wavelengths. The methods also involve comparing the absorbances of the test solutions with the absorbances of the output stream, which can include calculating ratios and comparing the ratios with target values. The methods can further involve adjusting operation of the fluid delivery system based upon the absorbances. In some embodiments, the dyes have largely non-overlapping absorbance spectra.