KNOXVILLE, Tenn.--(BUSINESS WIRE)--Provectus Pharmaceuticals, Inc. (OTCQB:PVCT, http://www.pvct.com), a development-stage oncology and dermatology biopharmaceutical company, has received U.S Patent No. 8,530,675 by the United States Patent and Trademark Office (USPTO), protecting the synthetic process used to produce the small molecule Rose Bengal, the active pharmaceutical ingredient (API) in PV-10, the Company’s lead oncology drug candidate.
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