ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,779,008, issued on Nov. 3, was assigned to LUCKY 4U EXIMS (Andhra Pradesh, India).
"Process for purification of mitragynine" was invented by Surya Pavan Kumar Avva (Tirupati, India) and V. S. R. Suresh Mamidipalli (Tirupati, India).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention discloses a process for the purification of Mitragynine, particularly discloses purification of Mitragynine from the crude extracts, for the pharmaceutical preparations. More particularly, the present invention discloses purification of Mitragynine using weak acid and weak base. The obtained purified Mitragynine is with fewer impurities."
The patent was filed...