ALEXANDRIA, Va., March 24 -- United States Patent no. 12,584,691, issued on March 24, was assigned to Mantle Inc. (San Francisco).

"Furnace system and method of use" was invented by Stephen T. Connor (San Francisco), Fabio Zurcher (San Francisco) and Thale Smith (San Francisco).

According to the abstract* released by the U.S. Patent & Trademark Office: "A sintering furnace can include an outer shell defining an internal volume a reactive agent inlet configured to introduce a reactive agent into the internal volume; an insulation chamber within the outer shell; and a retort configured to retain an object. A method of operating a sintering furnace can include sintering a part precursor within a retort arranged within a chamber, wherein the ...