ALEXANDRIA, Va., June 5 -- United States Patent no. 12,275,678, issued on April 15.

"Vermicast production through conversion of biodegradable organic matter" was invented by John Ashbee (Toronto), Thomas Christiansen (Oakville, Canada) and Aladin Jarrah (King City, Canada).

According to the abstract* released by the U.S. Patent & Trademark Office: "A feed stock-to-vermicast converter, comprising an enclosed flow-through vessel having an upstream inlet for introducing convertible feed stock into a mixed epigeic bed conversion zone adapted to accommodate a population of epigeic vermicast-producing worms, communicating with a vermicast-converted feed stock outlet."

The patent was filed on Nov. 30, 2016, under Application No. 15/530,057.

*F...