US Patent Issued to Saudi Arabian Oil, King Fahd University of Petroleum & Minerals on March 18 for "Recycled concrete aggregates and heavy oil fuel ash for green controlled low strength material" (Saudi Arabia Inventors)

ALEXANDRIA, Va., March 19 -- United States Patent no. 12,252,440, issued on March 18, was assigned to Saudi Arabian Oil Co. (Dhahran, Saudi Arabia) and King Fahd University of Petroleum & Minerals (Dhahran, Saudi Arabia).

"Recycled concrete aggregates and heavy oil fuel ash for green controlled low strength material" was invented by Zakariya Saleh Al-Helal (Dhahran, Saudi Arabia), Muhammad Kalimur Rahman (Dhahran, Saudi Arabia), Carlos Ernesto Acero (Dhahran, Saudi Arabia), Mohammed Ibrahim (Dhahran, Saudi Arabia) and Luai M. Alhems (Dhahran, Saudi Arabia).

According to the abstract* released by the U.S. Patent & Trademark Office: "A controlled low strength material has constituents that include a cement, an aggregate, and a water. The ag...