Is a
Patent attributes
Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Erik Keller0
Cornelis Herman Michel Van Der Loo0
Lekhram Changoer0
Date of Patent
August 28, 2018
0Patent Application Number
151466680
Date Filed
May 4, 2016
0Patent Citations Received
Patent Primary Examiner
Patent abstract
Δ9-THC acid is extracted from cannabis flowers using a first organic solvent, then separated using a second aqueous solvent. Δ9-THC acid is converted to Δ9-THC carboxylic salt before being extracted by a third organic solvent and converted back to Δ9-THC carboxylic acid. Using a solvent swap, Δ9-THC carboxylic acid is decarboxylated and extracted again with an organic solvent prior to purification to give Δ9-THC.
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