ALEXANDRIA, Va., April 21 -- United States Patent no. 12,606,781, issued on April 21, was assigned to BGCNORDIC OY (Vaajakoski, Finland).
"Biogas reactor and methods for producing biogas" was invented by Henri Viiru (Vaajakoski, Finland) and Pasi Kolehmainen (Kuohu, Finland).
According to the abstract* released by the U.S. Patent & Trademark Office: "A biogas reactor is disclosed in which biogas is formed from organic matter. The biogas reactor includes a wall to form a tank structure enclosing a tubular reactor space in which organic matter can be placed to form biogas. The wall forming the tank structure is comprised of a helically wound hollow pipe profile to form a spiral arrangement. The hollow space within the hollow pipe profile ac...