US Patent Issued to VALLOUREC TUBES FRANCE on April 15 for "High strength micro alloyed steel seamless pipe for sour service and high toughness applications" (French Inventors)

ALEXANDRIA, Va., June 5 -- United States Patent no. 12,276,014, issued on April 15, was assigned to VALLOUREC TUBES FRANCE (Meudon, France).

"High strength micro alloyed steel seamless pipe for sour service and high toughness applications" was invented by Vicente Braz Da Trindade Filho (Boulogne-Billancourt, France), Julio Marcio Silveira E Silva (Boulogne-Billancourt, France), Cedric Linne (Boulogne-Billancourt, France) and Ana Carolina Caldas Vilas Boas (Boulogne-Billancourt, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "Micro alloyed steels with a yield strength of at least 485 MPa (70 ksi) with outstanding toughness behavior, good weldability and improved sulphide stress cracking resistance for l...