ALEXANDRIA, Va., April 15 -- United States Patent no. 12,600,910, issued on April 14, was assigned to Cummins Inc. (Columbus, Ind.).

"Updraft gasifier and method, apparatus, and system for biomass decomposition" was invented by John R. Pendray (Blaine, Minn.), Ismael Chang (Plymouth, Minn.) and Jaimie E. Hamilton-Antonson (Minneapolis).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method, system, and apparatus for decomposing a biomass feedstock include providing a layer of inert particulate matter, such as sand, to line and insulate the bottom surface of a main chamber of a reactor where pyrolysis and oxidation are conducted to produce char and producer gases as primary products. In an embodiment, feedsto...