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. 19, 2024
Filed:
Sep. 05, 2019
Applicant:
Purisys Llc, Athens, GA (US);
Inventors:
Daniel M. Hallow, Bishop, GA (US);
Jun He, Watkinsville, GA (US);
Mark C. Dobish, Watkinsville, GA (US);
Denis Petrovic, Schaffhausen, CH;
Gnel Mkrtchyan, Watkinsville, GA (US);
Assignee:
PURISYS LLC, Athens, GA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K 31/352 (2006.01); A61K 31/05 (2006.01);
U.S. Cl.
CPC ...
A61K 31/352 (2013.01); A61K 31/05 (2013.01);
Abstract
The present disclosure relates to the preparation of a highly pure cannabidiol compound by a novel synthesis route. The cannabidiol compound can be prepared by an acid-catalyzed reaction of a di-halo olivetol with menthadienol, followed by two crystallization steps. The highly pure cannabidiol compound is produced in high yield, stereospecificity, or both, and shows exceedingly low levels of Δ-9-tetrahydrocannabinol at the time of preparation and after storage.