ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,559,368, issued on Feb. 24, was assigned to Johnson Matthey Davy Technologies Ltd. (London).

"Steam reforming" was invented by Mikael Carlsson (Billingham, Great Britain) and Andrew Edward Richardson (Billingham, Great Britain).

According to the abstract* released by the U.S. Patent & Trademark Office: "A process for steam reforming a hydrocarbon feedstock containing one or more nitrogen compounds, including passing a mixture of the hydrocarbon feedstock and steam through a catalyst bed of one or more nickel steam reforming catalysts disposed within a plurality of externally heated tubes in a tubular steam reformer, each tube having an inlet to which the mixture of hydrocarbon and st...