ALEXANDRIA, Va., June 17 -- United States Patent no. 12,310,899, issued on May 27.
"Coffin and method for collecting human bones" was invented by Wu Liu (Gaoan, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A coffin is provided, and the coffin includes a coffin body with a top opening and a coffin lid for closing the coffin body. The coffin lid is provided with an air intake hole and an exhaust air hole, the air intake hole and the exhaust air hole are respectively connected to an air intake device and an exhaust air device through pipelines to supply the oxygen required for decomposition of a body and exhaust waste gases. The coffin lid is further provided with an exhaust liquid pipe connected to a p...