ALEXANDRIA, Va., June 18 -- United States Patent no. 12,325,666, issued on June 10, was assigned to SAFRAN CERAMICS (Le Haillan, France).

"Method for densification by chemical vapour infiltration" was invented by Franck Lamouroux (Moissy-Cramayel, France) and Adrien Delcamp (Moissy-Cramayel, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for densification by Chemical Vapor Infiltration of a plurality of fibrous preforms arranged in the enclosure of a densification furnace, the method including at least the following procedures a) and b), each being repeated more than once: a) introducing a first gaseous phase, the thermal decomposition of which allows the matrix to form in the pores of the pl...