US Patent Issued to Arizona Board of Regents on behalf of Arizona State University on Aug. 4 for "Bio-agent for extraction of asphaltene from siliceous surfaces" (American, Chinese Inventors)

ALEXANDRIA, Va., Aug. 5 -- United States Patent no. 12,698,395, issued on Aug. 4, was assigned to Arizona Board of Regents on behalf of Arizona State University (Scottsdale, Ariz.).

"Bio-agent for extraction of asphaltene from siliceous surfaces" was invented by Elham Fini (Phoenix) and Saba Shariati (Shenzhen, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "Treating aged asphalt includes contacting aged asphalt with a bioagent to yield a mixture. The aged asphalt includes a siliceous stone component and bitumen, and the bioagent includes bio-oils formed from hybrid biomasses. The siliceous stone component and the bitumen are separated. The bioagent promotes separation of the siliceous stone from the bi...