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:
Nov. 15, 2022
Filed:
Nov. 27, 2018
Applicant:
Beleave Inc., Hamilton, CA;
Inventors:
John G. Marshall, Toronto, CA;
Lesley G. Campbell, Toronto, CA;
Assignee:
Other;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B01D 11/02 (2006.01); C07D 311/80 (2006.01);
U.S. Cl.
CPC ...
B01D 11/0288 (2013.01); B01D 11/0219 (2013.01); C07D 311/80 (2013.01);
Abstract
Disclosed are effective methods for activating, washing, specifically extracting and purifying cannabinoids fromplant tissues using heat activation, washing impurities away with a polar solvent, optionally modified with an organic acid, base, surfactant or inorganic salt, extracting the activated non-polar cannabinoids with a potable selective solvent such as ethanol. The extracted active ingredients may be purified by chromatography and detected and quantified by mass spectrometry with external or isotopic or otherwise labelled standards.