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. 01, 2026
Filed:
May. 31, 2019
Ian Andrew Lewis, Calgary, CA;
Daniel Gregson, Calgary, CA;
Ryan Groves, Calgary, CA;
Abstract
Methods for analyzing a urine sample to determine if it contains a microorganism linked to an infection. The method comprising: providing culture-independent urine sample from patient; and analyzing the sample; where the culture-independent urine sample contains a microorganism linked to a UTI if at least one decarboxylated amino acid metabolite selected from agmatine, putrescine or cadaverine is detected in the culture-independent urine sample. The presence of agmatine is strongly indicative of a urinary tract infection caused by a majority of UTI-causing microorganisms. Another method for sample analysis, for or apart from UTI issues, employs liquid chromatography and mass spectroscopy of eluents separated using continuous chromatography of a sample spiked with an amount of isotopically labelled target compound. In another embodiment, the method further employs two-stage, isocratic continuous chromatography and possibly including chromatography through more than one column with elution to a common mass spectrometer.
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