US Patent Issued to Stratasys Powder Production on May 20 for "Apparatus for the manufacture of three-dimensional objects" (British Inventors)

ALEXANDRIA, Va., June 16 -- United States Patent no. 12,304,146, issued on May 20, was assigned to Stratasys Powder Production Ltd. (London).

"Apparatus for the manufacture of three-dimensional objects" was invented by Frederik Tjellesen (London), Anders Hartmann (London) and Alexander Rasmussen (London).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for recirculating powder in an apparatus for manufacturing a three-dimensional object from the powder. The powder recirculation method includes: providing powder in a powder repository, the powder being one of fresh powder, excess powder or a blend thereof; transferring the powder from the repository to a work surface; distributing the powder across a bu...