ALEXANDRIA, Va., June 5 -- United States Patent no. 12,276,358, issued on April 15, was assigned to SAUDI ARABIAN OIL COMPANY (Dhahran, Saudi Arabia) and TWI Ltd. (Cambridge, Great Britain).

"Corrosion-free welded connection for reinforced thermoplastic pipes (RTP)" was invented by Abderrazak Traidia (Lussan, France), Thibault Villette (Belfort, France), Abdullah Al Shahrani (Dammam, Saudi Arabia), Anwar Parvez (Dhahran, Saudi Arabia), Abdulaziz Y. Asiri (Dammam, Saudi Arabia), Chris Worrall (Cambridge, Great Britain) and Nicholas Iain Verge (Cambridgeshire, Great Britain).

According to the abstract* released by the U.S. Patent & Trademark Office: "A connection system for reinforced thermoplastic polymer (RTP) pipe includes a first pipe w...