ALEXANDRIA, Va., July 14 -- United States Patent no. 12,678,778, issued on July 14, was assigned to Saudi Arabian Oil Co. (Dhahran, Saudi Arabia).

"Two-stage carbon dioxide adsorption using collapsed zeolite with ultra-small pores" was invented by Ali A. Almofleh (Dhahran, Saudi Arabia), Georgios Lithoxoos (Dhahran, Saudi Arabia) and Rashid M. Othman (Khobar, Saudi Arabia).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method of separating carbon dioxide (CO2) from air, where the method includes: feeding air into a cooler to generate cooled air, the cooled air including nitrogen (N2), oxygen (O2), water (H2O), and CO2; feeding the cooled air to a first adsorption column including a first zeolite adsorbent t...