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:
Apr. 28, 2009
Filed:
Feb. 03, 2003
Neil John Goodwin, Edinburgh, GB;
Nicolas James Archer, Edinburgh, GB;
Christopher Murray, Edinburgh, GB;
Alan Kenneth Greenwood, Herts, GB;
Derek Mchattie, Herts, GB;
Neil John Goodwin, Edinburgh, GB;
Nicolas James Archer, Edinburgh, GB;
Christopher Murray, Edinburgh, GB;
Alan Kenneth Greenwood, Herts, GB;
Derek Mchattie, Herts, GB;
Resolution Chemicals Limited, Stevenage, Hertfordshire, GB;
Abstract
Δ9 THC acid is obtained from plant material and extracted into an aqueous solvent under conditions of pH control. The acid is converted to a salt and the salt extracted into a polar solvent, yielding acid of high purity. The Δ9 THC acid is then converted to Δ9 THC which is further purified and combined with a carrier for pharmaceutical use.