Patent · US Expired

Oral detection test for cannabinoid use

US7465586B2 · kind B2 · utility

4Cited by

18References

60Claims

0Family size

Assignee

LabOne, Inc. · US

Inventors

David R. Day · Boston, US
David J. Kuntz · Salt Lake City, US
Michael Feldman · Toronto, CA

Key dates

Filing date	Nov 3, 2004
Grant date	Dec 16, 2008
Priority date	—
Expiry date	Nov 3, 2024

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T436/24
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A method for confirming the active intake of marijuana and its active component Δ9-tetrahydrocannabinol (“Δ9-THC”) by detecting the amount of 11-nor-Δ9-THC carboxylic acid (“THCA”) in oral fluid at the picogram per milliliter (pg/ml) level using chromatography/mass spectrometry/mass spectrometry (“GC/MS/MS”).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.