US Patent Issued to Tepha on June 10 for "Methods for 3D printing of poly-4-hydroxybutyrate and copolymers" (Massachusetts, New Hampshire Inventors)

ALEXANDRIA, Va., June 18 -- United States Patent no. 12,325,181, issued on June 10, was assigned to Tepha Inc. (Lexington, Mass.).

"Methods for 3D printing of poly-4-hydroxybutyrate and copolymers" was invented by Skander Limem (Lynnfield, Mass.), Reshad Bin Harun (Lexington, Mass.), Matthew Dubois (Ayer, Mass.), David P. Martin (Arlington, Mass.) and Said Rizk (Windham, N.H.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Methods to fabricate objects by 3D printing of poly-4-hydroxybutyrate (P4HB) and copolymers thereof have been developed. In one method, these objects are produced by continuous fused filament fabrication using an apparatus and conditions that overcome the problems of poor feeding of the fil...