ALEXANDRIA, Va., July 21 -- United States Patent no. 12,686,616, issued on July 21, was assigned to Saudi Arabian Oil Co. (Dhahran, Saudi Arabia) and King Fahd University of Petroleum & Minerals (Dhahran, Saudi Arabia).

"Modified multi-walled carbon nanotubes including multi-walled carbon nanotubes and carboxylate moieties and related methods" was invented by Tawfik A. Saleh (Dhahran, Saudi Arabia), Elaf A. Ahmed (Dhahran, Saudi Arabia), Danah Almoshawer (Dhahran, Saudi Arabia), Hasan Al Abdulgader (Dhahran, Saudi Arabia) and Abdullahi B. Olabintan (Dhahran, Saudi Arabia).

According to the abstract* released by the U.S. Patent & Trademark Office: "The disclosure relates to modified multi-walled carbon nanotubes (MWCNTs) that include MWCNT...