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:
Jul. 18, 2017
Filed:
Apr. 29, 2016
Hound Labs, Inc., Oakland, CA (US);
Michael J. Gordon, Goleta, CA (US);
Louis Chin Jones, Santa Barbara, CA (US);
Michael Scott Lynn, Piedmont, CA (US);
Hound Labs, Inc., Oakland, CA (US);
Abstract
Various embodiments for a hand-held device to determine a level of one or more cannabinoid compounds in exhaled human breath are provided; some embodiments may also determine a level of alcohol in the exhaled breath. The device may perform any of the following steps: capture, concentrate, separate, identify, and quantify the level of cannabinoids in the exhaled human breath. The device may use solvent extraction and liquid chromatography to concentrate and separate cannabinoids from breath contaminants, followed by selective chemical modification of the cannabinoids with a fluorescent indicator for quantification. The measurement methodology may also include real time calibration of the device and detection protocol using known cannabinoid standards, which are simultaneously analyzed along with an unknown, to quantify the level of cannabinoids captured from the breath sample. The capture and separation components, along with cannabinoid analysis standards, may be configured as part of a single-use, field-replaceable testing cartridge.